WASHINGTON — President Donald Trump declared Tuesday it’s time to “let Obamacare fail” after the latest GOP health care plan crashed and burned in the Senate, a stunning failure for the president, Republican leader Mitch McConnell and a party that has vowed for years to abolish the law.

In a head-spinning series of developments, rank-and-file Republican senators turned on McConnell and Trump for the third time in a row, denying the votes to move forward with a plan for a straight-up repeal of “Obamacare.” This time, it was three GOP women — Susan Collins of Maine, Lisa Murkowski of Alaska, and Shelley Moore Capito of West Virginia — who delivered the death blow.

All had been shut out of McConnell’s initial all-male working group on health care.

McConnell, who could afford to lose only two votes in the narrowly divided Senate, had turned to the repeal-only bill after his earlier repeal-and-replace measure was rejected on Monday. That had followed the failure of an earlier version of the bill last month.

The successive defeats made clear that despite seven years of promises to repeal former President Barack Obama’s Affordable Care Act, Republicans apparently cannot deliver. Nonetheless, McConnell insisted he would move forward with a vote on his measure to repeal the law, effective in two years, with a promise to work — along with Democrats — to replace it in the meantime.

The vote to move ahead to the bill will take place early next week, McConnell announced late Tuesday. It appears doomed to fail, but GOP leaders want to put lawmakers on record on the issue and move on.

At the White House, Trump appeared to recognize defeat, at least for the moment, while insisting he bore none of the blame.

“I think we’re probably in that position where we’ll just let Obamacare fail,” the president said. “We’re not going to own it. I’m not going to own it. I can tell you that the Republicans are not going to own it. We’ll let Obamacare fail and then the Democrats are going to come to us and they’re going to say, ‘How do we fix it?’”

Despite the current law’s problems, most health care experts do not believe it is at immediate risk of outright failure, and Democratic cooperation to adjust the law is far from assured.

Nor does it appear likely that Republicans can escape owning the problems with the law and the health care system overall, now that they control the House, Senate and White House, partly on the strength of campaigning against the law.

“They seem to have this notion that they can be a majority party, and have control of the White House, and not be responsible for bringing down the health care system,” said Democratic Sen. Dick Durbin of Illinois. “It doesn’t work that way.”