I think Eric lives in Florida. Not sure where Don Jr. lives. I don’t know of any rule saying there can’t be a father/son ticket. Obviously fathers and sons have been president before, just not at the same time.
So why can’t both candidates be from Florida? And why would that cancel out Florida’s electoral votes? What is the purpose of that rule (canceling the electoral votes)? Has there ever before been a ticket where both President and VP were from the same state?
What happens to Florida’s electoral votes if both Trump and his VP are from Florida?
First, Florida’s electoral votes aren’t canceled. Florida’s electors can’t vote for both President and VP from Florida. So, they (Florida’s electors) will have to vote for somebody else or abstain from one of the two slots.
Let’s say they (Florida’s electors) abstain from voting for the VP candidate. The VP might be elected anyway, if there is an electoral college landslide. But, if not, the election of VP goes to the Senate. Presumably, the Republicans have gained control of the Senate, and, so, it (the Senate) elects the VP.
If the party of the winning ticket controls a majority of the state delegations in the House of Representatives, but not a majority in the Senate, it’s possible the Florida electors vote for VP and abstain from President. In this scenario, the VP is elected by the electoral college, and the House of Representatives elects the President. This scenario seems to me to be tricky and I would be against it.
Things get tough if a party narrowly wins the electoral college but not the majority of state delegations in the House and also not the majority in the Senate.
BUT ... there’s another, much easier way. I’ll use Senator Rubio to describe this much easier way. After the election is over, Senator Rubio resigns from the Senate and declares he is a resident of Virginia (or wherever he lives in the D.C. area). This wouldn’t be difficult or awkward in any way. Not for a Senator who maintains homes in both his home state and the D.C. area.
Having said these things, regardless of the Constitutional prohibition on electors voting for both President and VP from their own state, it makes sense politically to have a running mate from another state.