Newt Gingrich has revealed that he's been urging House Republicans to hold hearings about gun control in Chicago: "The president's hometown, Chicago, is the murder capital of the United States. Over 500 people were killed there last year. Vice President Biden doesn't seem to want to go there. I'm trying to get the House Republicans to hold hearings there. It's illegal to have all the guns that are killing people in Chicago. If gun control works, Chicago ought to be safe," said Gingrich. Read more.