The bill to repeal the Affordable Care Act bears the name of Mr. Graham, but Mr. McCain, who helped sink an earlier repeal attempt, has remained undecided.
Governors from both parties testified before the Senate on behalf of modest changes to the Affordable Care Act, but the White House and some senators have not given up on repeal.
A Democratic group will spend the fall attacking President Trump and Republican lawmakers for trying to undermine the success of the Affordable Care Act