and debate. >> i don't think my colleagues in the house gave a fair process. as the pope, it appears inevitable and lawmakers are shifting focus to the senate and likely trial in january. >> conducting an impeachment trial in the senate is an enormously weighty and solemn responsibility. >> senate majority leader chuck schumer would like to hear testimony from at least four people tied to the ukraine scandal. acting white house chief of staff mick mulvaney, robert boyer, former national security john bolton and michael duffy associate director for national security at the office of management budget. but in 1999 during the clinton impeachment trial, schumer argued against having witnesses like monica lewinsky testified before the senate. >> it seems to me no good case has been made for witnesses. >> fox chad pergram asked why the change of heart? the witnesses in '99 had already been given, had already given grand jury testimony. we knew what they were to say.