is directed at the man now leading the impeachment inquiry against him on twitter trump wrote adam schaeffer must resign and be investigated he's been doing this for 2 years he's a sick man chairmanships committee is now in overdrive the california democrat has signaled he's keen to hear from key witnesses as soon as possible and they're from the president's inner circle if if we know there are many other witnesses to this conduct that we need to bring. we. had others involved. giuliani the president's personal lawyer has been leading the efforts to prove unverified allegations against trump's rival joe biden for months he's met repeatedly with ukrainian oligarchs and officials the committee wants to know if his freelance efforts damaged u.s. interests also in the inquiry cites mike pompei a state department they want to know if giuliani used pompei as diplomats to make contact with ukrainian officials active american diplomats are supposed not to political parties and on thursday might compile denied they had done so to the best of my knowledge from what i've seen so far each of the actions