Nope there was a survey recently, that showed a clear majority among Republican voters support Ukraine.
Unfortunately that is not the case for Trump and the crazy MAGA crowd. And they are the ones running the show.
Some of them are probably also delusional enough to believe Trump will help Ukraine with the peace plan Trump claims to have. Despite every sane person knows Trump will just demand Ukraine to yield, because they are not getting any more help.

Of course the support for Ukraine is bigger among Democrat voters, but that doesn't change that there also is a clear majority among Republican voters.