With Donald Trump all but certain to be the 2024 Republican presidential nominee, concerns are growing among Republican Party insiders over who he will select to be his running mate. During a recent Fox News town hall, the former president claimed he had already made his pick but would not be making an announcement until a later date. As Politico is reporting, that has both the GOP leadership and Trump loyalists concerned that he could select someone who does more harm to the ticket than good. POLL: Should Trump be allowed to run for office? At the top of the list of potential running mates wh…