The Trump/Russia collusion story drove MSNBC Ratings and so it was do ANYTHING to get ratings. On one hand it was a desire to build and get ratings something MSNBC sorely lacked before the Trump collusion story and on the other hand it was Get Trump so for MSNBC the Trump/Russia Story was a Win/Win. They had their negative stories on Trump and their ratings rose during the process.
It is said by Investor's Daily that negative stories were at 92% and A pew study said coverage of Trump was more negative than other contemporary Presidents and the Washington Times put the negative percent at 90 but I'm wondering what MSNBC's negative percent contribution was verses CNN's (Counterfeit News Network that is). What's interesting is that MSNBC seemed to profit far more from the anti Trump, Russia-Trump collusion story than did CNN.