Yes that is true and Iheart has been putting huge emphasis on podcasts on their app when they do Promos on their O&O's like KFBK, KFI and other Iheart owned stations.
I know on KFBK-FM in Sacramento Iheart has been doing a lot of promos recently for Katie Couric's podcast show recently as a ploy to go after the Gen Z demo.
Well I would like to see who Iheart has as a successor to Rush just in case he is gone and not just KFBK given that he spent 4 years as a local host in Sacramento before he went nationwide in 1988. The questions may vary though on depend on the PD's news/talk radio stations. Does the host have to be Right wing if Rush is gone or can the news/talk affiliate get away with simulcasting from Ihearts Podcast shows like Katie Couric may depend of the demos of the media market.
https://en.wikipedia.org/wiki/Sacramento_County,_California
Vote tallies have nothing to do with talk radio audiences, when the majority of all radio listeners are listening to something else.
I can see KFBK getting away with running with Iheart's podcast shows if and when Rush leaves. The last time the Sacramento area voted Republican was back in the 1980's. But the Current Sacramento area is DNC majority in terms of voters.