House Speaker Paul Ryan and President Donald Trump appear to be testing just how cruel their healthcare plan must be to win enough Republican support to pass Thursday’s House vote.

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Despite widespread outrage over what is already said to be a “massive transfer of wealth” from the lower to upper class while also stripping millions of people of their healthcare coverage, Trump and Ryan have been negotiating with the ultraconservative Freedom Caucus over last-minute changes hours before Thursday’s floor debate and vote on the American Health Care Act (AHCA).

Watch the C-SPAN feed here.

The leaders have reportedly agreed to consider a proposal to repeal the “essential health benefits” (EHBs) that were central to the Affordable Care Act (ACA), or Obamacare. This mandate, The Hill explains, “was intended to require insurance companies to provide coverage in 10 areas, including mental health coverage, pediatric dental and vision care, maternity care, and prescription drugs,” in order to “prevent insurers from offering skimpy plans that would leave people on the hook for thousands of dollars in costs if their plan doesn’t cover certain services.”

House Minority Leader Nancy Pelosi (D-Calif.) gave a press conference Thursday during which she decried the changes, namely eliminating the maternity care provision, as “a pregnancy tax,” saying it would re-institute the idea of womanhood itself being a “pre-condition.”

However, that concession may torpedo the plan’s viability among moderate Republicans. Politico reported late Wednesday:

Similarly, Republican Rep. Justin Amash of Michigan wrote online:

But that’s not all. Freedom Caucus members on Thursday are reportedly pushing for even more drastic changes, namely repealing protections for people with pre-existing conditions—which Politico notes is a “non-starter with most Republican lawmakers,” in addition to betraying a key promise during Trump’s presidential campaign.

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