The Senate will postpone its consideration of the GOP bill to repeal and replace the Affordable Care Act until Sen. John McCain returns to Washington.
The Republican senator from Arizona is recovering from brain surgery performed Friday to remove a nearly 2-inch blood clot from above his left eye. The surgery was described as a "minimally invasive craniotomy with an eyebrow incision."
The Republican effort to overhaul the Affordable Care Act, or Obamacare, has led to a standoff in the Senate.
Senate Democrats on Monday night began using parliamentary maneuvers to slow Senate business as part of a coordinated protest against the GOP push to pass an Obamacare replacement bill. A small group of Republican senators has been working in private for weeks, shielding from public view the bill and the negotiations surrounding it.