Rather than taking on his challenger for another hour, Cruz will remain in Washington to participate in Brett Kavanaugh's Supreme Court nomination process over the weekend.
The university and its media partners, ABC-13 and Univision 45 in Houston, are working on finding a new date for the debate.
The Sept. 30 debate between Senator Ted Cruz and Congressman Beto O’Rourke at the University of Houston has been postponed. Senator Cruz will be in Washington, D.C. for weekend votes.— University of Houston (@UHouston) September 28, 2018
UH, Univision 45 and ABC-13 are working with the campaigns to find a new date to reschedule. pic.twitter.com/VnVai7JTi7
Sunday night's forum was set to be a town-hall style debate, a format that could've favored O'Rourke. The candidates' third debate is scheduled for October 16 in San Antonio.
Their first debate, held at SMU last Friday, was largely seen as a draw, but O'Rourke has capitalized on the exposure he gained at the event to set a goal of raising $5 million by the end of September.
A committee vote on Kavanaugh's confirmation is scheduled for later Friday, followed by a procedural vote on Saturday. A final vote on President Donald Trump's second nomination to the Supreme Court is set for Tuesday.