GOP's 'Obamacare' repeal all but dead; McCain deals the blow

Sen. John McCain declared his opposition Friday to the GOP's last-ditch effort to repeal and replace "Obamacare," dealing a likely death blow to the legislation and, perhaps, to the Republican Party's years of vows to kill the program. It was the second time in three months the 81-year-old McCain emerged as the destroyer of his party's signature promise to voters.