A fourth amendment from Rep. Jo Ann Emerson (R-Mo.) would prevent funds from being spent on IRS efforts to verify people have healthcare coverage, mandated under the law. Another amendment from Thursday night to end federal funding for Planned Parenthood is also expected to get a vote.

The debates on healthcare were tense at times, and in many ways revisited last year's healthcare debate. House Minority Leader Nancy Pelosi (D-Calif.) said House Republicans are driving the House into "irrelevance," an apparent recognition that the entire House bill is unlikely to go anywhere in the Senate.

Pelosi also charged Republicans with "standing up for the insurance companies" by trying to end funding for the law.

Several Republicans said the bill needs to be defunded, and one, Rep. Phil GingreyJohn (Phil) Phillip GingreyEx-Tea Party lawmakers turn heads on K Street 2017's top health care stories, from ObamaCare to opioids Beating the drum on healthcare MORE (R-Ga.) said the bill might be the worst law ever passed by Congress. That drew a sharp rebuke from Rep. Sheila Jackson LeeSheila Jackson LeeThe US should work to counter India's actions against the people of Kashmir Sheila Jackson Lee tops colleagues in House floor speaking days over past decade Omar calls on US to investigate Turkey over possible war crimes in Syria MORE (D-Texas.).

"What about the slave laws?" she asked. "What about the fugitive slave laws? How dare anyone suggest this is the worst bill when we give opportunity to all Americans."