When you mention him “holding onto the Senate,” I figured the Senate is majority GOP for now & presumably loyal. Until next election time for senators — 2024.
The Senate seats revolve - a third of them are up for re-election every two years.
Again, we only had 8 up this year, while the DNC had 23. In 2020, that reverses and we have 22 seats up, they only have 12.
Holding onto the Senate is still not a given with the “counting” going on.