Registered voters are less enthusiastic about the Republicans' plan for repealing and replacing ObamaCare ahead of a full House vote on the legislation Thursday, according to a new poll.

Forty percent approve of the measure in the Morning Consult/Politico survey out Wednesday, a 6-point drop since last week.

Thirty-seven percent disapprove of the American Health Care Act (AHCA), a 2-point rise from the last poll.

ADVERTISEMENT

Twenty-two percent are undecided about the legislation, up 3 percent.

Pollsters also found voters are concerned about the pace at which Republicans are working to repeal and replace ObamaCare.

Forty-three percent believe the GOP should slow down on repealing the healthcare law, while 17 percent believe lawmakers are operating at the right speed instead.

GOP leaders cannot afford more than 21 defections in the House during Thursday’s vote.

Twenty-two House Republicans have pledged to oppose the ACHA, according to The Hill’s Whip List.

Morning Consult/Politico conducted its latest survey of 1,927 registered voters via online interviews from March 16 to 19. It has a margin of error of 2 percentage points.