The House speaker, Paul Ryan, and other Republicans falsely accused Democrats of rushing the Affordable Care Act through Congress. On Thursday, in a display of breathtaking hypocrisy, House Republicans — without holding any hearings or giving the Congressional Budget Office time to do an analysis — passed a bill that would strip at least 24 million Americans of health insurance.

Pushed by President Trump to repeal the A.C.A., or Obamacare, so he could claim a legislative win, Mr. Ryan and his lieutenants browbeat and cajoled members of their caucus to pass the bill. Groups representing doctors, hospitals, nurses, older people and people with illnesses like cancer opposed the bill. Just 17 percent of Americans supported an earlier version of the measure, and Republicans have made the legislation only worse since that poll was conducted. Neither Mr. Trump nor Mr. Ryan seemed bothered by this overwhelming criticism of their Trumpcare bill, the American Health Care Act. They seemed concerned only about appeasing the House Freedom Caucus, the far-right flank of their party.

Mr. Trump in particular has been spreading misinformation and lies about health care, arguing that the legislation would lower costs while guaranteeing that people with pre-existing health conditions could get affordable health insurance. It would do the opposite. Here is what the bill actually does:

Takes a machete to Medicaid. The bill would cut $880 billion over 10 years from Medicaid, the program that provides health care to about 74 million poor, disabled and elderly Americans. That’s one-fourth of its budget. As a result, 14 million fewer people would have access to health care by 2026, according to a C.B.O. analysis of the earlier bill, which contained similar Medicaid provisions. The cuts would also hurt special education programs, which receive about $4 billion from Medicaid every year.