They have so far. In fact President Trump will probably be grilled by Mulehead at some point.
It will make no difference in this bogus Russia collusion investigation. All it will do is make Mueller back off of Trump and Don Jr. and interview the lowest level people in the Trump campaign who don't have any info. This bogus witch hunt needs to be shut down yesterday. If not for the dossier by Hillary, this is and always was a nothing-burger. However, the MSM had to play the game for ratings.
The liberal socialists are edging on hysteria in their anti-Trump everything. Brandy what's her name who claims Trump is mentally ill should read the latest from her established peers who say she has no right to make such a diagnosis without direct comms with a patient.
My conclusion is from a military veteran, owner of 3 small companies, and a man of 68 years of watching human behavior. Trump is a sly fox who may not have the best articulation, but who is playing so many that it is changing the world to our benefit. Amazing things are coming this year. No popcorn, I prefer pizza and beer.