"We assume that Alexei was poisoned with something mixed into his tea."

Marrero also said letting Trump block the subpoena would amount to an "undue expansion" of presidential immunity.

Trump's lawyers said the U.S. president has longstanding discretion to decide who can be counted when apportioning Congressional seats.

"All you heard him talk about were lies about this president, consecutively one after the other."

"The only way we're going to have a big American come back is if we prevent a second Donald Trump...