Republican presidential front-runner Donald Trump raised $13.6 million in the fourth fundraising quarter, according to the campaign's filing with the Federal Election Commission. Trump, who often boasts about that he is self-funding his campaign, loaned his campaign $10.8 million, leaving his operation with nearly $7 million in cash-on-hand. The campaign reported that it spent nearly $7 million during the fourth quarter alone. It raised $2.6 million beyond Trump's loan. Most came from small dollar donations. The campaign owes $12.6 million to Trump himself. The filing shows that the Trump campaign spent nearly $500,000 on hats, primarily on the red caps...