Protesters are expected to gather Thursday evening outside the White House.
Same-sex marriage was slated to become legal in the state on Thursday.
"It's a very treacherous and slippery slope," Rep. Adam Schiff said.
“Y’all don’t need Gaza when you got Ferguson,” one said.
The governor is facing felony charges for alleged abuse of power.
Jesse Byrnes 08/19/14 03:45 PM EDT
The incident took place not far from Ferguson, Mo.
U.S. Attorney Richard A. Callahan said secrecy is crucial for the investigation.
Clashes erupted on the first night National Guard troops were deployed.
Chef Sam Kass is also an adviser to Michelle Obama.
Sen. Roy Blunt said state investigators should be given time to probe Michael Brown's death.