Donald Trump said Thursday that he was being sarcastic when he appeared to suggest that Russia should use espionage to find Hillary Clinton's deleted emails. But he's finding out that presidents, and presidential nominees, don't get that luxury when the topic is national security. His comments sparked a national furor and offered ammunition for Democrats who claim he's not fit to be president. Vice presidential nominee Mike Pence came to Trump's defense Thursday, accusing reporters and pundits in Philadelphia of taking his remarks out of context.