Republican Sens. Tom Cotton, John Thune, and Mitch McConnell at a meeting called by President Donald Trump at the White House on Tuesday. Kevin Lamarque/Reuters

Less than four in 10 voters approve of the Senate Republicans' healthcare bill, the Better Care Reconciliation Act, according to recent national polls.

A USA Today/Suffolk University poll, conducted Saturday to Tuesday, found that just 12% of voters supported the bill, while 45% disapproved of it. And 53% of those surveyed said Congress should either leave the Affordable Care Act, the healthcare law also known as Obamacare, untouched or make changes to it while keeping its framework intact.

A Morning Consult/Politico poll, conducted from Thursday to Saturday, found that 38% of voters approved and 45% disapproved of the Obamacare-replacement legislation. And twice as many voters — 30% — "strongly" disapproved of the bill than "strongly" approved of it.

An NPR/PBS NewsHour/Marist poll, conducted from last Wednesday to this past Sunday, found that just 17% of voters supported the GOP bill, while 55% said they disapproved and 25% said they did not know enough about the proposal to formulate an opinion.

In addition, a Quinnipiac survey, conducted from last Thursday to this past Tuesday, found that 16% of Americans support the bill and 58% disapprove of it. Just 37% of Republicans said they approved of the draft legislation. Seventy-one percent of all voters, and 53% of Republicans, were opposed to cuts to federal spending on Medicaid.

All four polls were conducted before GOP leaders on Tuesday announced they had delayed the vote on the bill in an effort to renegotiate the bill's terms and gain more party support.

And both the NPR and Morning Consult polls were conducted before the release of the nonpartisan Congressional Budget Office report on Monday, which projected that the bill would result in 22 million Americans losing health insurance by 2026.

But the bill does have significant support among Republican voters.

According to the Morning Consult poll, among registered Republicans, about 60% support the bill and a quarter oppose it, while among Democrats the numbers are reversed, with a 25% approval and 60% disapproval rating.

About twice as many voters believe the bill would make the country's healthcare system worse, increase the number of Americans without health insurance, increase health costs for their families, and degrade the quality of care, as those who believe it would improve on these measures, according to the Morning Consult survey.

Notably, Republican voters reflected a divide in their party between those who thought the bill did not go far enough in repealing Obamacare and those who thought it went too far. Thirty-one percent of Republican respondents said the proposed changes to the healthcare system were too dramatic, and 23% said they were not sufficiently far-reaching, Morning Consult reported.

In Washington, GOP moderates were turned off of the bill in part because of a nearly $800 billion cut to Medicaid, while far-right senators insist on a full repeal of Obamacare.

"The tension between moderate Republicans and hard-liners that is playing out in the Senate is mirrored in the polling," Kyle Dropp of Morning Consult told Politico.

The USA Today poll surveyed 1,000 registered voters and has a margin of error of plus or minus 3 percentage points; the NPR poll surveyed 1,205 adults and has a margin of error of 2.8 percentage points; the Morning Consult poll surveyed 1,994 registered voters and has a margin of error of plus or minus 2 percentage points; and the Quinnipiac poll surveyed 1,212 voters nationwide with a margin of error of 3.4 percentage points.