Los Angeles Times: Lady Gaga is expected to headline a rally in support of repealing the "don't ask, don't tell" policy on gays in the military this afternoon in Maine, where two senators could provide key votes when the Senate takes up the issue on Tuesday. The musician upped the pop-cultural wattage on the political debate when she and Sen. Harry Reid (D-Nev.) exchanged Twitter messages last week on the issue. She urged her fans to push Reid for a vote; Reid tweeted back that one was scheduled.