The former chairman of the House Ways and Means Committee passed away at his home.
Hundreds of mourners on Monday paid their final respects to former Congressman Dan Rostenkowski.
Rostenkowski died Wednesday in his Wisconsin home after a long battle with lung cancer. He was 82.
The wake for Rostenkowski was held Monday from 1 p.m. to 9 p.m. at St. Stanislaus Kostka Church on Chicago's North Side.
Prominent attendees included Sen. Dick Durbin and Illinois Secretary of State Jesse White.
"He was always there for us, he was always helping us, the people of Chicago," said Bob Terzich, a former Democratic member of the Illinois General Assembly, according to the Chicago Sun-Times. "Certainly you could count on Dan Rostenkowski to represent the people of Chicago."
Church secretary Cristina Carrazco says the Mass will be celebrated by Monsignor Kenneth Velo, who is a senior executive for Catholic collaboration at DePaul University in Chicago.
Rostenkowski served 18 terms in Congress.