Protesters nationwide have called for the protection of special counsel Robert Mueller's investigation into potential collusion between Russia and President Donald Trump's campaign. Several hundred demonstrators gathered Thursday in New York's Times Square and chanted slogans like "Hands off Mueller" and "Nobody's above the law" before marching downtown. In Chicago, Democratic Sen. Dick Durbin joined several hundred protesters at Federal Plaza. Crowds also turned out at the White House and in Greensboro, North Carolina; Chattanooga, Tennessee; Las Vegas and elsewhere across the U.S.