I call BS. In MN, during the lead up to the 2018 elections they had shows like one asking callers who voted for Obama and then Trump or voted for Obama but didn't vote in 2016, what would the democrats have to do to et them back. They had a the host, several other NPR commentators and panel of a bunch of DNC folks. I've never caught them doing something for the Republicans in the same time block (or ever).
One day over lunch, they had a woman covering Saudi politics and the Khashoggi assassination. She made it clear that the Crown Prince very well could have ordered the assassination, but that were also several other reasonable possibilities that it could have be another Prince trying to give the Crown Prince a black eye, or trying to do the Royal family a favor, or a number of other things. She went into details of how power had rearranged under the Crown Prince and how there were several plausible reason for the assassination. The host seems to act as though they respected the woman. She was not a political shill. In the 24 hours between that show and the next day, Trump made his tweet that the Prince didn't order the hit and had been setup (actually like one of the cases the woman from the prior day said was reasonable.) "Nobody every said anything like that." They were acting like Trump made it up (he may have) and that no sane person considered a possibility. It's like they had no memory of their show the prior day.
Prior to the virus this year, they were having shows asking for callers to explain what the Democrats would have to do to "win back" the religious vote. Here in MN, NPR are a communications arm of the local DNC office.