Well, Kevin McCarthy has already said that republicans plan to stop funding military aid to Ukraine if they win back the house. Others that take a considerably more favorable Russian stance include MTG, Matt Rosendale, JD Vance, a bunch of Trump administration officials, and of course Trump himself. Liz Cheney has referred to this faction as the “Putin wing” of the Republican Party.

Source: https://www.nytimes.com/2022/04/07/briefing/republican-party-putin-wing.html