• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
Leadership

The $6.8 Trillion Question in Marco Rubio’s Tax Plan

By
Haley Sweetland Edwards
Haley Sweetland Edwards
and
TIME
TIME
Down Arrow Button Icon
By
Haley Sweetland Edwards
Haley Sweetland Edwards
and
TIME
TIME
Down Arrow Button Icon
February 11, 2016, 9:30 PM ET
Marco Rubio
Republican presidential candidate, Sen. Marco Rubio, R-Fla. waits for an interview with CBS to begin during a campaign stop at Norton's Classic Cafe in Nashua, N.H., Monday Feb. 8, 2016. (AP Photo/Jacquelyn Martin)Photograph by Jacquelyn Martin — AP

If Sen. Marco Rubio becomes president, he’ll face a $6.8 trillion question: What should he cut?

That’s the amount of spending cuts over 10 years that the Florida Republican’s tax plan would require Congress to find in order to balance the budget, unless a booming economy made up the difference, according to a new report by the Tax Foundation.

To put that in context, it would mean axing all discretionary defense spending for a decade. Or closing the Department of Education. Or simply shutting down every federal program, including the military, for nearly two years.

To be fair, presidential candidates’ tax plans are not intended to be realistic, exactly. They’re more like the political equivalent of a vision board: they’re what candidates wish for. It’s what they would do if they had a magic wand. Or absolute power.

In that context, Rubio’s plan is a love letter to the purest version of trickle-down economics: the long-held conservative idea that if you cut taxes, the free market will make up the difference. People will use the savings to grow their businesses, invest more and hire more people, thereby ginning up the economy and leading to more tax revenue on smaller tax rates. Voila!

According to the Tax Foundation, Rubio’s plan gets us halfway there. It would deliver a huge 48.9% growth in capital investment, second only to retired neurosurgeon Ben Carson’s plan, which would precipitate a 46.6% growth in capital investment. If that holds true, then Rubio’s budget hole would shrink to $2.4 trillion—still a sizable amount. And neither he nor Carson provide much detail on what they’d do to make up the difference.

That’s one thing for Carson to say. But it’s another for Rubio, who remains the top pick of the Establishment wing of the Republican Party, a group that prizes its reputation for fiscal responsibility.

As of now, Rubio’s plan for how he would actually balance the budget is notably devoid of details. It includes a list of 10 bullet points featuring such vague gems as “Prevent massive, irresponsible spending bills” and “force Washington to live within its means without raising taxes.”

Rubio’s hardly alone. Every other Republican candidate remaining this cycle has produced a tax plan that would lead to at least some substantial deficit spending, even factoring in the Tax Foundation’s model for how tax breaks would gin-up capital investment.

Under the more generous assumptions of that model, Texas Sen. Ted Cruz would leave us $768 billion dollars in the red, former Florida Gov. Jeb Bush would leave us $1.6 trillion dollars in the hole, compared to Rubio’s $2.4 trillion. And real estate mogul Donald Trump, who continues to lead the Republican field, would strike a staggering $10 trillion blow to the budget.

The Democratic candidates, meanwhile, operate under different political pressures. Unlike Republicans, the Democratic Party struggles with a reputation for being fiscally irresponsible, leaving candidates in a general election open to withering attacks that they are fiscally reckless, while their party’s grassroots voters are less bothered by raising taxes on the rich.

As a result, both former Secretary of State Hillary Clinton’s and Vermont Sen. Bernie Sanders’ tax plans raise taxes, mostly the wealthiest Americans, and produce budget surpluses after 10 years: $191 billion in Clinton’s case, and nearly $10 trillion in Bernie’s, which also includes one of his major vision board items: passing, and funding, universal health care.

But according to the Tax Foundation, both Clinton and Sanders would hurt capital investment growth: Clinton by nearly 3% and Sanders by nearly 20%.

That’s a tradeoff they’re not likely to mention, just as Rubio hasn’t answered his $6.8 trillion question. But then, one of the rules of making a vision board is to avoid including anything you’d rather not have in your life.

This article was originally published on Time.com.

About the Authors
By Haley Sweetland Edwards
See full bioRight Arrow Button Icon
By TIME
See full bioRight Arrow Button Icon

Latest in Leadership

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025

Most Popular

Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Finance
Lorem ipsum dolor sit amet, consectetur adipiscing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua. Ut enim ad minim veniam
By Fortune Editors
October 20, 2025
Fortune Secondary Logo
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Fortune Crypto
  • Features
  • Leadership
  • Health
  • Commentary
  • Success
  • Retail
  • Mpw
  • Tech
  • Lifestyle
  • CEO Initiative
  • Asia
  • Politics
  • Conferences
  • Europe
  • Newsletters
  • Personal Finance
  • Environment
  • Magazine
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
  • Group Subscriptions
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map
  • Facebook icon
  • Twitter icon
  • LinkedIn icon
  • Instagram icon
  • Pinterest icon

Latest in Leadership

Jon McNeill with microphone in hand
SuccessCareers
Former Tesla president reveals the ‘single most important thing’ you can do for your career—it’s a habit Elon Musk and Warren Buffett share too 
By Preston ForeApril 11, 2026
13 hours ago
vicente
CommentaryLeadership
Ingersoll Rand CEO: here’s how employee ownership helped drive more than 8x enterprise value growth
By Vicente ReynalApril 11, 2026
14 hours ago
karp
Future of Workpalantir
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Jacqueline MunisApril 11, 2026
14 hours ago
Berkshire Hathaway's Warren Buffett
SuccessWealth
Warren Buffett says ‘accumulating great amounts of money’ doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
By Emma BurleighApril 11, 2026
15 hours ago
AI promises to free workers from grunt work, but psychologists say those mindless tasks are exactly what our brains need to recover
AIworker productivity
AI promises to free workers from grunt work, but psychologists say those mindless tasks are exactly what our brains need to recover
By Marco Quiroz-GutierrezApril 11, 2026
17 hours ago
Three people sit behind a desk and look at the phone screen of the person in the middle.
Future of WorkConsulting
Meet ‘trendslop,’ the new, AI-fueled scourge of workplace consultants everywhere
By Sasha RogelbergApril 10, 2026
1 day ago

Most Popular

Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
Success
Scottie Scheffler joined Tiger Woods and Rory McIlroy in golf's $100M club—and donated his entire Ryder Cup stipend to charity
By Fortune EditorsApril 10, 2026
1 day ago
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
Real Estate
The 'affordability economy' has created a housing market nobody predicted: Prices collapsing in the Sun Belt, soaring in the Rust Belt
By Fortune EditorsApril 11, 2026
17 hours ago
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
Politics
The Navy confirmed an ‘abundant amount’ of Uncrustables when the Artemis II crew lands. Smucker’s just offered them a lifetime supply
By Fortune EditorsApril 10, 2026
1 day ago
'This is the last warning.' Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
Politics
'This is the last warning.' Iran threatens U.S. warships after they throw down the gauntlet for winner-take-all Strait of Hormuz
By Fortune EditorsApril 11, 2026
3 hours ago
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
Success
Warren Buffett says 'accumulating great amounts of money' doesn’t achieve greatness—He still lives in a $31,500 Nebraska home and clipped coupons
By Fortune EditorsApril 11, 2026
15 hours ago
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
Future of Work
Palantir CEO says AI ‘will destroy’ humanities jobs but there will be ‘more than enough jobs’ for people with vocational training
By Fortune EditorsApril 11, 2026
14 hours ago

© 2026 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.