 Chisum remained competitive in the race by tapping into more than $600,000 that he raised during his legislative years.Craddick was backed by such wealthy donors as the physician-turned-entrepreneur James R. Leininger and the since deceased homebuilder Bob J. Perry of Houston, no relation to Governor Rick Perry.Chisum was endorsed by Roland Sledge of Houston, the fifth-placed candidate who polled nearly 9 percent of the primary vote.