Most of Audacy's stations aren't even talk. Of those that are, two of the best sounding are KMBZ (FM) which is mostly apolitical, and WWL in New Orleans. Those are focused on their local markets and aren't full of the syndicated shows or the talking points.
Even IF this theory were true that Soros was somehow going to interfere in the programming, it would affect a single digit number of stations. Nowhere near the amount of stations programmed nationwide by iHeart and others carrying an abundance of conservative talk. The scenario people "fear" isn't going to happen, but even if it did, it would be a single digit loss of affiliates for conservative shows at most.
It's no different than a country outlet going Top 40 or an English outlet converting to a station serving Spanish language audiences. Formats change, demographics change, and markets change. And a person with the wealth of George Soros isn't micromanaging it. He cares about as much about one station airing Mark Levin as he does how many times their CHR stations play Taylor Swift each day.
As for Senator Cotton, it's an interesting dilemma. On one hand, he's the sort that would say the government and media don't trust people to make up their own mind and govern themselves, and yet, he's implying that this handful of radio stations mostly on AM can somehow change the minds of these voters in two weeks. Or that someone thinks in two weeks, by somehow shoehorning a liberal program onto these only modestly relevant stations, an election is going to be won.
Surely he knows better.