Here’s how it could happen in theory. The Hill thinks Florida Sen. Marco Rubio may be Trump’s VP pick (story here).
Let’s say Florida’s electoral votes decide a close election. The 12th Amendment would allow its electors to vote for only one person from their state.
So if they vote for Trump and can’t vote for Rubio, then Harris wins the vice presidency.
But a Trump-Rubio ticket could avoid this if one of them changes his state of residence. So, if Trump is imprisoned in New York for the state crimes he committed there, he might as well reclaim New York as his residence.
Related Story: Former Bush speechwriter David Frum believes Trump’s VP pick will be a “negligible human being” who is “spiritually broken” and doesn’t mind being humiliated (read that story here).