Uh, yeah, no...he (and we) did not.
Left the candidates twisting in the wind out to dry. No fundraising despite a huge contact list. So-called conservative publications with nonsensical articles and headlines portraying McConnell's PAC as the entity in charge of funding or not funding campaigns also didn't help, either. Meanwhile, the Democrats raked in loads of cash and decimated the GOP. Florida being one of the exceptions.
https://ballotpedia.org/Endorsements_by_Donald_Trump
2022
Total Endorsements
495
Primary Endorsements
241
Primary Success
93%
GE Endorsements
GE Success
254 83%