In an astonishing showdown with Trump, FBI Directory Comey has said that Trump’s unsubstantiated allegations of wiretapping by President Obama are simply not true and is demanding the Justice Department reject such claims.

In a tweet storm this weekend, Trump made malicious accusations against Obama, but provided no evidence to back it up.

Comey made the request on Saturday after Trump leveled his allegation on Twitter. He been working to get the Justice Department to knock down the claim because it falsely insinuates that the F.B.I. broke the law, the officials said.

Comey’s request is a remarkable rebuke of a sitting president, putting the nation’s top law enforcement official in the position of questioning Trump’s truthfulness.

A spokesman for Obama and his former aides have called the accusation by Mr. Trump completely false, saying that Obama never ordered any wiretapping of a United States citizen.

“A cardinal rule of the Obama administration was that no White House official ever interfered with any independent investigation led by the Department of Justice,” Kevin Lewis, Obama’s spokesman, said in a statement on Saturday.

Trump’s demand for a congressional investigation appears to be based on unproven claims by Breitbart News and conservative talk radio hosts that secret warrants were issued authorizing the tapping of the phones of Trump and his aides at Trump Tower in New York.

ref: https://www.nytimes.com/2017/03/05/us/politics/trump-seeks-inquiry-into-allegations-that-obama-tapped-his-phones.html