The committee chairmen also sent a separate letter to Pompeo to schedule the depositions of five State Department officials over the next two weeks.
If true, the allegations should spark an investigation into the potential mishandling of a classified system, intelligence experts say.
While many in the Trump White House are battle-tested from the Mueller investigation, this time is starting to feel different, aides and advisers said.
Democrats reached the milestone following claims Trump might have withheld aid to Ukraine to pressure officials there to investigate Joe Biden and his son.
"I think it's a travesty that this complaint was withheld as long as it was because it was an urgent matter and it is an urgent matter," Schiff said.
Three key members of the House Judiciary Committee argued for launching an inquiry if former White House counsel Don McGahn failed to testify at a planned hearing Tuesday.
Donald Trump's political advisor Roger Stone is just the latest of the president's associates to be indicted by Mueller as part of the ongoing investigation into Russian interference in the 2016 United States election. Could this be the final straw?
Former president Park Geun-hye, who governed South Korea from 2013 until last year, faces charges of bribery and abuse of power.
Peruvian President Pedro Pablo Kuczynski pulled off a surprise victory against the opposition's bid to force him from power as a graft scandal rocks Latin America, with a motion in Congress falling eight votes short of the 87 needed to oust him.
Peru's president faces the fight of his life as a Congress he does not control sets December 21st for a vote sanctioning corruption allegations.
Ten million dollars to dish the dirt on Donald Trump.
Thats the offer put forward by Hustler magazine in a full-page ad.
Its publisher Larry
Key lawmaker recommends Brazilian President Michel Temer should stand trial on corruption charges after declaring there is a case to answer