Republican Rep. Michael McCaul of Texas has announced he will not seek re-election next year, ending his more than 20-year run in Congress.

Rep. Michael McCaul, R-Texas, seen here in a House Committee on Foreign Affairs hearing in December, announced he will not seek re-election next year. File Photo by Annabelle Gordon/UPI UPI

Sept. 15 (UPI) -- Republican Rep. Michael McCaul of Texas has announced he will not seek re-election next year, ending his more than 20-year run in Congress.

McCaul announced his intention Sunday on ABC News' This Week.

"It's been an honor to serve for over two decades in Congress," he said. "I'm looking now for a new challenge."

The former federal prosecutor and deputy attorney general of the state of Texas has represented the Lone Star State's 10th Congressional District since 2005. During his years in Congress, he has chaired the House Committees of Homeland Security and Foreign Affairs.

He was also appointed as a House manager last year in the Republicans' failed attempt to impeach then-Homeland Security Secretary Alejandro Mayorkas.

In the broadcast, McCaul said he will serve the remainder of his term, after which he will seek opportunities in the realms of national security and foreign policy.

"My father's service in World War II inspired me to pursue a life of public service, with a focus on defending our great nation against global threats, and I have been proud to carry out that mission in Congress for more than two decades," he said in a statement on X that followed his interview.

"I'm ready for a new challenge in 2027 and look forward to continuing to serve my country."

Rep. Don Bacon, a Republican from Nebraska, described McCaul as "a great congressman, a great American and a great friend."

Rep. Joe Courtney, a Democrat from Connecticut, issued a statement calling McCaul "a terrific partner" as his co-chair of the bipartisan Friends of Australia Caucus.

"His commitment to public service & strong international alliances will be missed," Courtney said on X.