WASHINGTON — Barring something monumental — a health crisis, a debilitating legal development — Donald Trump is all but guaranteed to become the 2024 Republican presidential nominee. And potential Trump running mates seem to be working overtime this month to audition for the part. In doing so, many are contrasting their philosophies and MAGA fealty to that of former Vice President Mike Pence, who Trump long ago dumped from consideration. ALSO READ: 11 ways Trump doesn’t become president On January 6, 2021, Pence refused calls from Trump and his allies to overturn the results in crucial swing s…