Schiff: Whistleblower has 'right to remain anonymous'

"We will do everything in our power to make sure that that whistleblower is protected that whistleblower's preferences in terms of their anonmity are respected," Schiff said.

Trump on Sunday tweeted: 'Like every American, I deserve to meet my accuser, especially when this accuser, the so-called "Whistleblower," represented a perfect conversation with a foreign leader in a totally inaccurate and fraudulent way."

The chairman of a congressional panel helping to spearhead an impeachment inquiry into President Donald Trump said on Wednesday he plans to issue a subpoena to the White House for documents relating to the administration's contacts with Ukraine.