Fortunately, not everyone's falling in line behind McCain: Key Senators Appear Open To Ending 'Don't Ask' (NPR):

... at least two key committee Republicans whom Democrats have seen as potential votes for repeal — Susan Collins of Maine and Scott Brown of Massachusetts — appeared open to supporting an end to the ban. So did Sen. Jim Webb, the only committee Democrat who voted against repeal when the measure was added to the defense bill earlier this year.