Poll: A majority of Americans support raising the top tax rate to 70 percent

Rep. Alexandria Ocasio-CortezAlexandria Ocasio-CortezOn The Money: Trump appeals to Supreme Court to keep tax returns from NY prosecutors | Pelosi says deal on new NAFTA 'imminent' | Mnuchin downplays shutdown threat | Trump hits Fed after Walmart boasts strong earnings Overnight Energy: Perry replacement faces Ukraine questions at hearing | Dem chair demands answers over land agency's relocation | Ocasio-Cortez, Sanders unveil 0B Green New Deal public housing plan Sanders, Ocasio-Cortez drum up support for Green New Deal public housing plan MORE (D-N.Y.) and her Republican critics have both called her proposal to dramatically increase America's highest tax rate "radical" but a new poll released Tuesday indicates that a majority of Americans agrees with the idea.

In the latest The Hill-HarrisX survey — conducted Jan. 12 and 13 after the newly elected congresswoman called for the U.S. to raise its highest tax rate to 70 percent — a sizable majority of registered voters, 59 percent, supports the concept.

Ocasio-Cortez has not introduced any legislation to enact the concept but the survey shows a broad cross-section of Americans supports it, at least presently.

Women support the idea by a 62-38 percent margin. A majority of men back it as well, 55 percent to 45 percent. The proposal is popular in all regions of the country with a majority of Southerners backing it by a 57 to 43 percent margin. Rural voters back it as well, 56 percent to 44 percent.

Increasing the highest tax bracket to 70 percent garners a surprising amount of support among Republican voters. In the Hill-HarrisX poll, 45 percent of GOP voters say they favor it while 55 percent are opposed to it.

Independent voters who were contacted backed the tax idea by a 60 to 40 percent margin while Democratic ones favored it, 71 percent to 29 percent.

Ocasio-Cortez is among a group of progressive legislators which includes Sen. Bernie SandersBernie SandersButtigieg surges ahead of Iowa caucuses Biden leads among Latino Democrats in Texas, California On The Money: Trump appeals to Supreme Court to keep tax returns from NY prosecutors | Pelosi says deal on new NAFTA 'imminent' | Mnuchin downplays shutdown threat | Trump hits Fed after Walmart boasts strong earnings MORE (I-Vt.) who have called for increasing federal income tax rates on wealthier Americans. The New York Democrat kicked off a debate within her party in a Jan. 6 interview with "60 Minutes" during which she said she would support setting the highest tax, which she said would kick in at individuals 10 millionth dollar of income, at 70 percent.

In her comments to the CBS show, Ocasio-Cortez referenced tax rates that had once been in place during the mid-20th century. During the 1950s and 60s, the wealthiest Americans were once taxed at a rate in excess of 90 percent.

"That doesn't mean all $10 million are taxed at an extremely high rate, but it means that as you climb up this ladder you should be contributing more," she said.

The proposal has been met with both criticism and acceptance within the Democratic party. Republicans and conservative commentators have been universally critical, some incorrectly implying that the congresswoman wants to tax all income of the richest Americans at 70 percent.

The latest Hill-HarrisX poll was conducted online among a demographically representative sample of registered voters and has a sampling margin of error of 3.1 percentage points.

—Matthew Sheffield