The fact is this is a third rail for the GOP much like abortion, Support for Ukraine is broadly popular across a huge spectrum of the American public and the fact that the support that the US government is providing them is producing positive effects way beyond thier cost is going to be a hard point to sway from.  Not saying its not possible but it will require a large amount of misinformation to change peoples minds. In my mind how hard they push to try and stop aid for Ukraine is really going to be the measuring stick of how beholden to Russian power they really are.