know using twitter a lot getting the white house message out, organizing for america, the president's grassroots message, doing it from outside the white house. both sides are pretty engaged on it, and you played "empire state of mind" on the way to the segment. jay-z, of course, i hear people laughing. >> it's the new theme for my team, right? that's what they played as the yankees -- >> reporter: that's right. >> -- won the world series. >> reporter: ali and i root for the yankees. they are coming to the white house because they won the world series. i see people groaning, i think they are not yankees' fans. some are and some are not. >> white sox. >> reporter: we've got a white sox fan here along with the president of the united states, who is white sox fan. i'm going out on a limb, but when the president welcomes derek jeter and the yankees, he threw out the first pitch at the nationals' game last week, he had a nationals' jacket, but he put on a white sox cap. >> he had to. he had to.