top of the hour. want to get you up to seed. newt gingrich gets ready to pull the plug on his presidential campaign. sources telling cnn gingrich is going to officially end his run for the white house next week, throw his support behind mitt romney. gingrich expected to help republicans try to win back the senate and hold onto the house. here is what he said earlier today. we re going to stay very, very active. we re working out the details of our transition and we ll have information for the press the next couple days, but i am committed to this party, i am committed to defeating obama. we will find ways to try to be helpful. i do think it s pretty clear that governor romney is only going to be the nominee and we ll do everything we can to make sure he is, in fact, effective. a major retailer in south korea is pulling u.s. beef from its shelves. the store is stopping sales after a single case of mad cow disease was confirmed in california. the u.s. agriculture department
on winning back gop control of the senate and holding on to the house. the u.s. supreme court taking on the toughest immigration laws. the justices hearing arguments on arizona senate bill 1070. the key question, who has the power. january brewer signed the bill into law two years ago. the obama administration sued arizona arguing that the federal government, not the state has the power to enforce emigration laws. we ll have a live report in 22 minutes. just across the street, a secret service sex scandal. nine secret service members forced out of their jobs after the encounter with prostitutes in colombia. lawmakers are just getting started. they are talking homeland security now with janet napolitano. she says she will not fire the secret service director. she did tell him what she exp t expects of him now. there are three things i immediately discussed with the director. one was to make sure the president s security was never at risk. two, make sure we instituted a p