A powerful conservative backlash threatened to sink the new Republican health care bill less than 24 hours after its launch, even as President Donald Trump and congressional leaders began trying to sell the legislation as the long-promised GOP cure for “Obamacare. ” “We’re going to do something that’s great and I’m proud to support the replacement plan released by the House of Representatives,” Trump declared at the White House as he met with the House GOP vote-counting team Tuesday.