Shit, NPR made a noticeable shift rightward during (and since) Trump's presidency due to some perception of having a liberal bias for simply stating the factual news.
I think it really depends on your station. I noticed a pretty big whiplash effect sometime around 2018 where they started really pushing back on pro-Trump guests in a way which they hadn't done previously. Recently they seem to actually be pulling fewer punches, straight up calling Trump out for telling lies (rather than just "mistruths" or "dishonesty"). This morning they called out a Trump SEC appointee who was questioning if Harris could inherit Biden's money. They seem to go back and forth depending on what specifically is in the news cycle.
Not exactly my local station, but I love listening to Brian Lehrer on WNYC for that very reason. He's so good at actually asking great follow up questions that I'm usually shouting at my radio while the host allows some conservative to spew outright lies.
They need an external enemy to hate. CNN and the rest of the "mainstream media" is one of those. They could grant Trump whatever he wanted, and they would still attack because that is CNN's only purpose in their headspace.