2012 shapes up as candidates officially join the race

Rep. Ron Paul announced his candidacy Friday morning, just days after fmr. House Speaker Newt Gingrich officially entered the race. So, who else is likely to join the 2012 race and who has the best shot of winning the Republican primary?

Former Rep. Susan Molinari talks about the beginnings of the 2012 GOP campaign with CNN's Ali Velshi and Christine Romans.