>> president trump decided against blocking testimony thursday. mr. trump weighed options over the weekend. >> the president's power to exert executive privilege is very well established. in order to facilitate a swift and thorough examination of the facts sought by the senate intelligence committee, president trump will not assert executive privilege regarding james comey's test money. >> senior republican said on sunday he's not sure what to expect from comey about his meetings with president trump regarding the russia case and memos where comey documented the conversations. >> i haven't frankly understood much of what comey has done since about a year ago. >> senior democrat on the senate intelligence committee said he wants to ask comey as well as top intelligence officials will be testifying in advance of