U.S. President Donald Trump is criticizing U.S. Sen. John McCain, R-Ariz., over his opposition again to Republican efforts to get rid of Obamacare. “John McCain never had any intention of voting for this Bill, which his Governor loves. He campaigned on Repeal & Replace. Let Arizona down!,” Trump said via Twitter (NYSE: TWTR). Trump’s hit at McCain after comments last night at a rally in Alabama calling on the National Football League to fire players who refuse to stand for the national anthem.…