Senate Minority Leader Chuck Schumer said he was "more worried about what happened" after reading the whistleblower complaint this afternoon.
Schumer made these comments after emerging from the Senate Sensitive Compartmented Information Facility, or SCIF.
"Having read the documents in there, I’m even more worried about what happened than I was when I read the memorandum of the conversation," the New York Democrat said.
Democrats reading the document say it backs up their commitment to their investigation. The move comes just hours after the White House released a rough transcript of a July 25 phone call that shows President Trump repeatedly pressed the leader of Ukraine to investigate former Vice President Joe Biden and his son.
The conversation between Trump and Ukrainian President Volodymyr Zelensky is included in the whistleblower complaint, a source familiar with the situation said last week.
Trump has downplayed the significance of the complaint, claiming the whistleblower is partisan and his conversations with foreign leaders are "appropriate."
During a news conference in New York, the President claimed the individual — who has not been identified — "didn't have any first class or first rate or second tier information from what I understand."