The 2012 presidential campaign is like no other with nearly half of the TV ads being funded not by the campaigns, but by political action committees formed to support the candidates. Jeff Glor reports on who is behind the money.
With dwindling funds and pressure to drop out for the good of the party, GOP presidential candidate Newt Gingrich continues to campaign. Jeff Glor spoke with CBS News political director John Dickerson on how much longer the former speaker of the house can last.
A defiant Newt Gingrich said he plans to campaign all the way up to the Republican convention. Despite his fading support, the former Speaker of the House boasted he will catch up to his rival Mitt Romney. Chip Reid reports.