It’s not often a former president and vice president run against each other for the party nomination.

In fact, a multiple-term president has not replaced his subordinate since Franklin D. Roosevelt replaced Henry Wallace with Harry Truman in 1944.

For Donald Trump, he will surely need a new running mate in 2024, with Mike Pence actively campaigning against him.

Pence was quick to distance himself from Trump in the aftermath of January 6, 2021, a stance that has remained ever since the attack on the Capitol.