DELAWARE, Ohio — Mocking his critics, Donald Trump pledged Thursday to fully accept the outcome of next month's presidential election — if he wins. The Republican said he reserved the right to contest questionable results, deepening his unsubstantiated assertions that the race against Hillary Clinton could be rigged against him.Trump's comments came a day after his stunning refusal in the final presidential debate to say whether he would concede to Clinton if he loses. His resistance, threatening to undermine the essence of American democracy, was roundly rejected by fellow Republicans.Arizona Sen. John McCain, the 2008 GOP nominee, called the peaceful transfer of power "the pride of our country.""I didn't like the outcome of the 2008 election.