speak on the 2-year-old arizona law due to be challenged tomorrow at the u.s. supreme court. more on that and surprising facts from the u.s./mexican border. there s little drama but don t tell voters. voting is under way in republican primaries in rhode island, connecticut, delaware, pennsylvania and new york. mitt romney, of course, appears to have the nomination in the bag. santorum is dropped out, but his name is on the ballot. for now, gingrich and ron paul vowing to fight on. romney right now has 695 of the 1,144 delegates needed to clench the nomination. president obama focusing on education. this morning, he honored the national teacher of the year and the finalists at the white house. these are the kind of teachers who change lives forever. i wouldn t be here today if it were not for teachers like these who challenged me, pushed me and put up with me and inspired me and set me straight when they had to. the president heads to college campuses in three battlegrou