In his 24 years in the Senate, two terms in the House and stints as lieutenant governor and at the helm of the state's powerful Gambling Commission, Reid has built a vaunted get-out-the-vote machine that should not be underestimated. He has the backing of the powerful Vegas unions. "Do it for Harry Reid! He's our champion," AFL-CIO President Richard Trumka told a large crowd last week. Also appearing on Reid's behalf: President Barack Obama, First Lady Michelle Obama, former President Bill Clinton and a coterie of other powerful Democrats and Hollywood celebrities.