Hillary Clinton took to Twitter on Friday to bash Republicans as "the death party" if the Senate passes its healthcare plan.
Here's the 2016 Democratic presidential candidate's post:
Clinton's tweet came after a fifth Republican, Sen. Dean Heller of Nevada, said he could not back his chamber's plan to repeal and replace Obamacare.
Heller, 57, who is in his first term, is considered the most vulnerable of the Republican senators up for re-election next year.
The other four Sens. Ted Cruz of Texas, Mike Lee of Utah, Rand Paul of Kentucky, and Ron Johnson of Wisconsin ripped the working draft of the legislation immediately after Senate leaders unveiled it Thursday.
The GOP holds a 52-48 lead in the Senate and cannot afford to lose more than two votes on the bill, which was approved last month by the House.