UB political scientist James Campbell sums up Iowa caucuses

Republican presidential candidate Mitt Romney narrowly slipped past the rest of the GOP field to win Tuesday night's Iowa caucuses. 

The photo-finish saw Romney beat Rick Santorum by eight votes, with Ron Paul in a close third.  Now it's on to the primaries in New Hampshire and then South Carolina. 

University at Buffalo political scientist James Campbell, a nationally recognized scholar on presidential politics, joined WBFO's Mark Scott to talk about the results.