President Donald Trump on Monday lashed out again at fellow Republicans about healthcare, saying they now "have a last chance to do the right thing."
It came as Republicans in the Senate struggled to come together on a bill to overhaul President Barack Obama's healthcare law.
Monday's tweet followed on the heels of his weekend tweetstorm, in he was more directly threatening, saying "If Republicans don't Repeal and Replace the disastrous ObamaCare, the repercussions will be far greater than any of them understand!"
Senate Majority Leader Mitch McConnell was making a last-gasp effort to resuscitate the legislation after Trump insisted that senators not leave town for their August recess without passing a health bill.
Trump has had a complicated relationship with the Republican Party, but GOP lawmakers have continued to be generally supportive of the president, even as his approval ratings have slipped.
This report contains material from The Associated Press.