Chef Sam Kass is also an adviser to Michelle Obama.
Blog Briefing Room
Sen. Roy Blunt said state investigators should be given time to probe Michael Brown's death.
Petri asked the panel to review his advocacy for a defense firm he owns stock in.
The petition now has enough signatures to warrant an official response.
"We will not use a curfew tonight," Gov. Jay Nixon (D) said.
Paul, who called Perry a "disaster" on many issues, said the charges are "pure politics."
Lesley McSpadden says justice calls for the Ferguson arrest of Darren Wilson.
Young introduced his fiancee, Anne Garland Walton, a flight nurse, on Sunday.
Reid urged supporters to stay motivated.