Democratic Senate candidates Paul Sadler, left, and Grady Yarbrough debate before their runoff matchup at KERA-TV studios in Dallas on Tuesday, June 26, 2012. The debate will be broadcast on KERA-TV Channel 13 at 7:00 p.m. CDT on Wednesday, June 27, with an encore broadcast at 1:00 p.m. on Sunday, July 1.