Former Colorado Republican Rep. Ken Buck shared some of his greatest frustrations and lifted the lid on how Congress works in an interview airing several retiring lawmakers’ thoughts on how the House is operating.

Buck, who started representing Colorado’s 4th Congressional District in 2015, announced his retirement, resigned early, and left his seat wide open. Late last year, he announced he would not seek reelection in 2024, citing “lying” from his party about the Jan. 6 insurrection on the U.S. Capitol.