Yes it matters. In fact its critical. Its not so much because his choice of VP will sway large numbers of voters. Its critical because if he picks somebody (Noem, Scott, etc) the Deep State is comfortable with, he will almost certainly be dead within a year. Conversely, if he picks somebody they are as or even more afraid of like JD Vance, Kari Lake, etc he’ll be just fine.
Think that’s “conspiratorial”? These people have already proven time and time again that they will stop at nothing to preserve their own power.
Kamala seemingly served a similar purpose — in a somewhat different way.
Bingo