Former President Donald Trump‘s penchant for punishing GOP detractors is trickling down to Congress as some of his most ardent supporters are using loyalty to the former president as a litmus test for the Republican Party.

House Republican disagreements between conservatives and centrist lawmakers on government funding and leadership have been a mainstay since the GOP won back a slim majority in 2022. But that infighting is spilling over into the 2024 presidential primary, threatening to further fracture the already-fraught GOP caucus.