Trump hits John McCain for 'letting Arizona down' with GOP health care bill opposition

President Donald Trump speaks during rally for Alabama state Republican Senator Luther Strange at the Von Braun Civic Center September 22, 2017 in Huntsville, Alabama.
Getty Images

President Donald Trump on Saturday upbraided Arizona Senator John McCain for disappointing the voters of his state, saying the senator 'let Arizona down' by opposing the GOP's latest effort to reform health care, imperiling the Republicans' drive to repeal and replace the Affordable Care Act.

For the second time in two months, The 2008 Republican nominee dealt a fatal blow to his party's attempt to fix Obamacare. In a statement on Friday, McCain said that he could not, "in good conscience," vote for the proposal known as Graham-Cassidy — despite the legislation being sponsored by South Carolina Senator Lindsey Graham, one of McCain's closest Senate allies.

In a dramatic late-night vote in July, McCain — who has cultivated a reputation as a "maverick" with an independent streak — voted no on a similar attempt by the GOP to reform health care.

On Twitter, Trump blasted McCain for his refusal to vote for the bill, saying he "never had any intention" of voting for Graham-Cassidy, adding that he "let Arizona down" by opposing it.

John McCain never had any intention of voting for this Bill, which his Governor loves. He campaigned on Repeal & Replace. Let Arizona down!

Arizona had a 116% increase in ObamaCare premiums last year, with deductibles very high. Chuck Schumer sold John McCain a bill of goods. Sad

The proposal has also been criticized by the Medicaid directors in all 50 states, who issued a joint letter this week that said Graham-Cassidy would place a massive financial burden on the states.

Large Block Grants to States is a good thing to do. Better control & management. Great for Arizona. McCain let his best friend L.G. down!

The bill passage hinged on support from four undecided Republicans. Sen. Susan Collins, R-Maine, said she is leaning toward voting no on Graham-Cassidy. Kentucky Sen. Rand Paul has already expressed his opposition to the bill, which he said didn't fully repeal the Affordable Care Act.

Trump, however, praised Paul on Saturday, predicting he would ultimately back an effort "for the good of the party."

I know Rand Paul and I think he may find a way to get there for the good of the Party!

--CNBC's Christina Wilkie contributed to this report.