if you watched MSNBC any, you'd realize they initially LOVED trump because he was saying mean things to Jeb all day.
These days, they have turned on him, and they love John Kasich now. MSNBC spends about 30 minutes of each 60 minute show pointing out trump's flaws, contradictions, and how much his ideas will actually cost. Relentlessly. Chuck Todd was peppering Trump with nonstop gotcha Qs.
So yes, 3-4 weeks ago, they were sucking up to trump as he made the GOp field look dumb. These days, they're shitting on him.