This was reported in a press release on the website of the committee of the House of Representatives.
It is noted that the congressmen of the three intelligence, foreign affairs, reform and oversight committees sent a letter to the acting head of the White House apparatus Mike Mulveni.
Earlier, chairpersons of the House of Representatives committee on intelligence, foreign affairs, and reform and oversight requested documents from the Vice President of the United States, Michael Pence, on Ukraine.
On October 4, US President Donald Trump announced his intention to send a letter to the House of Representatives demanding a vote on the issue of impeachment.