Republican Sen. Bob Corker said he can't vote "yes" on legislation he believes could "deepen the debt burden on future generations."
Sen. John Cornyn said Friday morning the Senate has enough votes to pass the bill.
The latest plan would replace Obamacare's Medicaid expansions with block grants for states.
On Tuesday, Sen. Ron Johnson seemed to imply Sen. John McCain's cancer may have affected his vote on the GOP health care repeal.
The Senate Republicans' health care bill unveiled Thursday gained several vocal critics — Republican senators — within hours.
Wisconsin Sen. Ron Johnson says Hillary Clinton's mishandling of classified data is grounds for impeachment.