let's talk 2020 where candidates are talking impeachment. just this morning democratic contender and former colorado governor john licken hooper added his name to this list of presidential candidates calling for impeachment after hearing from robert mueller yesterday. >> i think we have to begin an impeachment inquiry. >> i think the right thing is to hold this president accountable for his actions. >> the only method we can do that is for our representatives in congress to begin impeachment proceedings. >> it is our constitutional responsibility as members of congress to bring a judgment of impeachment against this president. >> msnbc national political correspondent steve kornacki joins us along with mike memory