Sorry, but senators are not on the list in line for president.
JFK was senator then became president.
McCain, Romney, Obama were senators then ran for president.
I did not say Fetterman would inherit presidency. But if he wins PA election for senator, he can run and win after Kamala’s 2 terms. There are more registered Democrats than Republicans. And Democrats are loyal voters. They don’t use terms like DINO very often. We use RINO all the time.