TV faceoff winnows US presidential hopefuls from 17 to 10

The field of Republican rivals for US President has been drastically cut from 17 to just 10 for the first televised faceoff, with Donald Trump leading the pack. Fox TV picked the 10 on how well they've been doing in the polls, and that means some big names like the former Senators and 2012 presidential hopefuls Rick Perry and Rick Santorum missed out.