Strong feelings. And he shared them with donors and advisers. Via the Guardian:
According to a new book, Obama called Trump a “madman”, a “racist, sexist pig”, “that fucking lunatic” and a “corrupt motherfucker”.
The remarks are reported in Battle for the Soul: Inside the Democrats’ Campaigns to Defeat Donald Trump by Edward-Isaac Dovere, a staff writer at the Atlantic, which will be published next week. The Guardian obtained a copy
[...]“He’s a madman,” Dovere reports Obama telling “big donors looking to squeeze a reaction out of him in exchange for the big checks they were writing to his foundation”.