Ken Stone has some great reporting in the San Diego Tribune.
The biggest revelation is that Max Siegel has promised Mt. Sac the 2021 USATF Champs. This was after USATF pulled the 2020 Olympic Trials from Mt. Sac.
The article also has a detailed memo from Mt. Sac that alleges they told USATF a) one lawsuit had been dismissed b) even if they lost the other lawsuit on funding of the stadium construction there were alternative sources of funding. From Mt. Sac's perspective they thought everything was on track, yet USATF officials showed up at some of the court hearings and limited any small talk and then soon after cancelled the Olympic Trials.
To top it all off it turns out USATF had not actually signed the Olympic Trials contract so technically it couldn't be enforced which was good for Mt. Sac because they could get all the money they paid back without having to fight USATF.
The article links to the memo which has the full undredacted contract between USATF and Mt. Sac for the Trials. It shows the expenses involved.
Costs of hosting Trials: $3 million in cash to USATF ($500,000 fee + $1.25 million prize money + $1.25 million athlete support) + all the costs of putting on the event (personnel, insurance, per diem for USTAF officials, cars for USATF, etc)
Mt Sac keeps all the ticketing revenue and gives USATF 17% of any local sponsorships it gets.
The article is here.
Memo here: https://timesofsandiego.com/wp-content/uploads/2018/06/MtSAC-USATF-chronology.pdf