A President Trump-backed candidate in Oklahoma has abruptly withdrawn from the race for the state’s 1st Congressional District, following a rapid shift in presidential support within less than 24 hours.

Jackson Lahmeyer, the pastor who founded Pastors for Trump, suspended his campaign just one day after advancing to a Republican runoff. On Tuesday night, Lahmeyer was still being presented as the candidate with Trump’s backing. By Wednesday, President Trump publicly shifted his endorsement to Mark Tedford.

The sudden change comes amid controversy over alleged text messages published earlier in the week that Lahmeyer’s campaign had faced. Lahmeyer acknowledged he had crossed a boundary through text messaging and then suspended his campaign, stating he did not want to become a distraction to his family, church, or Oklahoma voters.

In the deeply red Tulsa-area district, Tedford’s path to the Republican nomination appears clear following Lahmeyer’s withdrawal after Tuesday’s special primary. The timing is critical as the district had recently opened following former Representative Kevin Hern’s entry into the Senate race, making the Republican nomination the focal point in a heavily conservative seat.