US presidential hopeful Mitt Romney criticises London 2012
27 July 2012 Last updated at 07:05 BST
Republican US Presidential candidate Mitt Romney, who has been visiting London, has sparked something of an Olympic controversy.
Mr Romney is credited with rescuing the 2002 Winter Games in Salt Lake City but now, he has appeared to question London's readiness to host a successful Olympics in an interview for American TV.
The BBC's Zoe Conway reports from Washington.