Compiled by Jonathan Helman, CNN Washington Bureau
Tonight is Super Tuesday Part II. The number of states is less but the stakes are high. Ohio, Texas, Rhode Island, and Vermont cast their votes.
*Hillary Clinton attends an election night celebration in Columbus, Ohio.
*Mike Huckabee stops by a polling site and his election office in Dallas, Texas. He attends a primary night party in Dallas, Texas.
*John McCain is in Texas. He hosts a meet and greet and media availability in San Antonio, attends a town hall meeting in Houston and an election night party in Dallas.
*Barack Obama attends a primary night party in San Antonio, Texas.