[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2008/images/08/25/art.kennedys.gi.jpg caption="Sen. Edward Kennedy and his wife, Victoria, depart from the Capitol last month"]DENVER, Colorado (CNN) – Sen. Edward Kennedy is in Denver for the opening night of the Democratic National Convention, preparing to make only his second public appearance since brain surgery earlier this year.
The official program calls for a videotaped message from Kennedy as part of a tribute to him, but a Democratic source close to the senator's family said Sunday night that the 76-year-old liberal icon "is itching to go and pushing back" at those who say it is too risky a trip to make.
"He's truly humbled by the outpouring of support, and wouldn't miss it for anything in the world," Kennedy's office told CNN.
The Massachusetts Democrat had surgery June 2 for a brain tumor.
With the exception of one dramatic return to the Capitol for a crucial vote, he has been out of the public eye recuperating.
Because of the earlier belief that he would not be up for the trip to Denver, Kennedy videotaped a message that - according to the program - is scheduled to be played in the convention hall Monday night.
Kennedy endorsed Obama over Sen. Hillary Clinton of New York during the Democratic primary season. Other members of the Kennedy clan followed suit. He was an active surrogate for Obama until suffering a seizure that led to the discovery of his brain cancer.