Romney's London Trip a Winner... for Obama Candidate makes gaffe after gaffe: Nicholas Watt By Matt Cantor, Newser User Posted Jul 27, 2012 11:05 AM CDT 60 comments Comments Mitt Romney answers reporters' questions outside 10 Downing Street in London, Thursday, July 26, 2012. (AP Photo/Charles Dharapak) (Newser) – Mitt Romney has been doing his opponent some serious favors during his trip to London. He's managed to offend the British public with remarks about Olympic preparedness, prompting a witty comeback from David Cameron. He let slip that he'd met with the boss of MI6. And he called the leader of the opposition Labor party "Mr. Leader," not the norm in the UK. It's "almost too embarrassing" to compare Candidate Obama's Europe trip with Romney's, writes Nicholas Watt in the Guardian. "Obama wooed a quarter of a million people in Berlin while Romney was mocked by the British prime minister," Watt notes. Here's a tip for the candidate: "Try not to offend your host, particularly when he is the leader of your closest sister party in a country that is meant to enjoy a 'special relationship' with the US." Another Romney gaffe, picked up by Gawker: He said he was looking "out of the backside of 10 Downing Street," which sounds even worse in Britain than it does in the States.