8:50am PT by Ashley Lee
Watch Joan Rivers' Daughter Share Barack Obama's Tribute in First Public Appearance
The late comedy legend's daughter made the comment during her first public appearance since her mother's death, in E!'s Fashion Police: Celebrating Joan special, airing Friday night.
"She affected so many people, and people you would never expect to have humor," Melissa explains, alongside Kelly Osbourne, Giuliana Rancic and George Kotsiopoulos. "I received a letter from the White House, President Obama, someone who was often a target of her jokes, as was Mrs. Obama, but I received a handwritten note, saying, 'Not only did she make us laugh, she made us think.' "
Osbourne added, "If it wasn't for your mother, I wouldn't be able to be me. My mother wouldn't be able to be her. Any outspoken, independent woman wouldn't be who they are if it wasn't for women like Joan paving the way."
The 90-minute special Fashion Police: Celebrating Joan airs on E! on Friday at 8 p.m. Watch the clip here.