Sen. Ted Kennedy, D-Mass., greets the crowd at the Democratic National Convention in Denver on Monday, Aug. 25, 2008 at the Pepsi Center. AP Photo/(RODOLFO GONZALEZ/ROCKY MOUNTAIN NEWS)

In this May 8, 2008, photo, Chairman of the Senate Health, Education, Labor and Pensions Committee, Sen. Edward Kennedy, D-Mass., listens during a hearing on breast cancer in Washington. Republicans raised many millions of dollars over the past three decades just invoking the name of Ted Kennedy. Sen. Edward M. Kennedy, D-Mass., was the poster child of liberals, the quintessential Washington tax-and-spender, a left-wing caricature to his detractors. (AP Photo/Susan Walsh, File)

Sen. Ted Kennedy, D-Mass, speaks at the National Hispanic Cultural Center in Albuquerque, N.M., in this Thursday, Jan. 31, 2008 file photo. Kennedy is jumping into the middle of an uproar within the gay community whose causes he has long championed. The Massachusetts Democrat is leading a push in the Senate for a federal ban on job bias against gays, lesbians and bisexuals _ but not transsexuals, cross-dressers and others whose outward appearance doesn't match their gender at birth. (AP Photo/Toby Jorrin)

Sen Ted Kennedy, D-Mass., greets Democratic presidential hopeful Sen. Barack Obama, D-Ill., as he arrives at Newark International Airport for a rally at the Meadowlands arena in East Rutherford, N.J., Monday, Feb. 4, 2008. (AP Photo/Charles Rex Arbogast)