It looks like he will be landing between 9:00pm and 10:15pm tonight at Sky Harbor. The most interesting comms that have been in the clear that I have monitored in the past have been DPS, and Air Traffic Control. It is always an experience to hear ATC talking to "Air Force One".
It sounds like he might be staying at the Princess in Scottsdale, so DPS should be active with the motorcade tonight.
If you are near Sky Harbor, or the Princess tonight, there may be some encrypted VHF federal freqs pop up that are not normally active.
During the events on Friday, there might be some might be some rarely used talkgroups pop up on the RWC and TRWC with security assistance at the events. In the past, most on this has be on the RWC H Deck encrypted talkgroups when around Phoenix and the west valley. Let's see what pops up on the TRWC when he is in Mesa.