I imagine Trump will insert himself into the response and then you will hear the fool talk about himself and how great he is! Yada yada blah blah! He would be incapable of addressing or rebutting any part of Biden's speech! We'd hear Sleepy Joe this and that, the nasty FBI and how he's a victim of a raid and DOJ! Then he'd vent on about how disloyal Nikki Haley and Ron DeSantis are...can't believe how scared Trump is of DeSantis (the guy can't stop complaining and whining about Ron DeSantis....he's nearly wetting himself).
This schtick is interesting, but will be sad to see it come to a close when DeSandwich loses to Trump in the primaries, or if Trump chooses not to run, loses to Biden by 150+ EV in the general.
DeSandwich is a solid governor from my time in the state this year, but not a national-caliber politician.