Republican leaders may make more revisions to their plan to repeal parts of Obamacare to encourage more centrists to support the legislation, after a day in which many signaled they can’t support the bill in its latest form.

House Speaker Paul Ryan, R-Wis., House Majority Leader Kevin McCarthy, R-Calif., and Health and Human Services Secretary Tom Price met Thursday with GOP lawmakers opposed to the bill. Republicans still don’t have the 217 votes they need to pass the American Health Care Act, and a vote this week appears increasingly doubtful.