About half of registered voters are against weakening federal protections for people who have pre-existing conditions, according to a new poll.

A Politico/Morning Consult poll finds that 50 percent of voters somewhat or strongly oppose letting states opt out of requirements that health insurance companies cover pre-existing conditions.

Another 38 percent are in support of the proposal, according to the poll.

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Fifty-two percent of Democrats and forty-eight percent of Republicans are opposed to letting states opt out of requiring health insurance companies to cover pre-existing conditions, according to the poll.

The poll finds 42 percent of respondents are in support of the proposal to repeal and replace ObamaCare. Thirty-seven percent of voters are opposed to the proposal and 20 percent are undecided.

Forty-eight percent approve of the job the president is doing in office, according to the poll, compared to 46 percent who disapprove.

The poll was conducted from April 27 to 30 among 1,998 registered voters. The margin of error is 2 percentage points.

The revised GOP healthcare proposal would allow states to waive certain ObamaCare protections that prevent insurers from charging people more based on their health and identify a range of medical services all insurance plans must cover.

The provision — inserted to win over the conservative House Freedom Caucus — has become perhaps the biggest obstacle to passing the healthcare bill.

Speaker Paul Ryan Paul Davis RyanAt indoor rally, Pence says election runs through Wisconsin Juan Williams: Breaking down the debates Peterson faces fight of his career in deep-red Minnesota district MORE (R-Wis.) and other GOP leaders tried to tackle the issue during a conference meeting Tuesday, telling members there are "layers" of protection for the sick in the bill.

Those protections include the creation of new high-risk pools for people shut out of coverage and a provision stipulating that people with continuous insurance coverage can't be denied for pre-existing conditions.