Trump doesn’t “need” a VP candidate to “help” him win! If there’s no thievery, he’s a lock!
A good nominee will help, a bad one will hurt. Look at the good/bad choices over the years. Look at the people that lost and the VP's they chose. It matters. Cruz was DOA before he name Fiorina, definitely afterwards. Look at Hillary's lame choice, Tim Kaine. Imagine if she had picked someone credible? Think back to Ross Perot picking a senile admiral whole was clueless about what was going on or why he was there.
Trump needs a nominee that helps win votes, turn some purple states into red states, someone credible as president as backup. In 2028 we currently have DeSantis, so all we need is a one-and-done VP.