Bartholomew D Sullivan, Kevin Johnson, and David Jackson

USA TODAY

WASHINGTON — FBI Director James Comey this weekend sought a public rebuke from the Justice Department of President Trump's claim that former president Barack Obama ordered the surveillance of Trump's phones prior to the election, a U.S. official confirmed Sunday to USA TODAY.

The Justice Department had not responded to the request Sunday after Comey's extraordinary request to discredit claims of a plot to sabotage the president's campaign. The official who confirmed the FBI director's action, first reported by TheNew York Times, is not authorized to comment publicly.

Comey, the official said, wanted Justice to comment, because Trump's claims were not true. The Justice Department and the FBI did not immediately comment on the matter.

The revelation of Comey's request capped off a weekend in which Trump made a series of unsubstantiated claims about illegal wiretapping, while Democrats said he was trying to change the subject from the ongoing investigation of Russian interference in last year's election. Through a spokesman Saturday, Obama denied wiretapping Trump, and on Sunday, former director of national intelligence James Clapper said he knew of no effort to seek wiretaps against Trump during his tenure.

Speaking on NBC’s Meet the Press, Clapper said “there was no such wiretap activity mounted against the president-elect at the time, as a candidate or against his campaign.”

Pressed on whether he would know whether the FBI had obtained a Foreign Intelligence Surveillance Court order to wiretap the Trump campaign, Clapper said he would have known and that none existed “to my knowledge,” and none was authorized for Trump Tower, the president’s campaign headquarters last year.

The statement followed Trump’s claim, in a series of tweets early Saturday, that Obama “had my ‘wires tapped’ in Trump Tower just before the victory. Nothing found. This is McCarthyism!” and, minutes later, “Is it legal for a sitting President to be ‘wire tapping’ a race for president prior to an election? Turned down by court order. A NEW LOW!”

Trump also asked for a congressional investigation of his claims, saying in a statement from White House spokesman Sean Spicer that "reports concerning potentially politically motivated investigations immediately ahead of the 2016 election are very troubling."

Trump is "requesting that as part of their investigation into Russian activity, the congressional intelligence committees exercise their oversight authority to determine whether executive branch investigative powers were abused in 2016," Spicer said. While Trump repeatedly tweeted about Obama during the weekend, Spicer's statement said "neither the White House nor the President will comment further until such oversight is conducted."

The Sunday news interview shows focused on the Trump wiretap allegation, the campaign’s alleged contacts with Russian officials and Attorney General Jeff Sessions’ decision last week to recuse himself from any investigation of the 2016 presidential race. The recusal came after news reports established that though Sessions testified under oath during his confirmation hearing that he, being a Trump campaign surrogate, had not met with Russian officials, he had in fact met twice with Russian Ambassador Sergey Kislyak. Session’s spokeswoman Sarah Isgur Flores said he met with the ambassador in his capacity as a senator.

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Sen. Marco Rubio of Florida, a sometime Trump critic who serves on the Intelligence Committee, said on Meet the Press regarding the wiretap claim that he had “never heard that allegation made before by anybody. … But again, the president put that out there, and now the White House will have to answer to exactly what he was referring to.”

Former CIA director and Defense secretary Leon Panetta, on CBS’ Face the Nation, said that Trump is making the same mistake other presidents have during scandals by seeking to “divert attention, trying to obfuscate, trying to cover up,” but that truth will come out.

“This issue is not going away,” he said. “There’s too much here.”

“Every time he tweets, every time these issues come up that indicate that there’s obviously something to this Russia issue, and the administration is not cooperating when that happens, when he accuses a past president of wiretapping without any evidence of that being the case, it makes us vulnerable…It makes us vulnerable to our enemies,” Panetta said.

Maine Sen. Susan Collins, a Republican on the Intelligence Committee looking into the Russian influence in last year’s election, said that rather than tweeting accusations, “it would be more helpful if he turned over any evidence he has,” and not comment further.

“The president has called for a congressional investigation into the allegations he made starting yesterday morning, so I would expect that he’s going to want to provide our committee with any evidence that he has,” Collins said.

“My own theory is that the Russians are determined to sow the seeds of discontent and doubt about the legitimacy of our democracy and other western democracies and that they were going to do that regardless of who was elected president, so it’s really important that we know what happened,” she said.

Sen. Mark Warner of Virginia, the ranking Democrat on the Intelligence Committee, said he believes the investigation underway will “get the information we need.” He said he expects to hear from former national security adviser Michael Flynn, who resigned after his contacts with Kislyak during the transition to Trump’s presidency were revealed.

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Georgetown University law professor Paul Rothstein said an attack like Trump’s on a former president is “unprecedented. I am aware of no other one like this.”

Rothstein explained that the president himself could not legally order a wiretap but the FBI or the Justice Department could apply for a warrant if they could demonstrate to a judge that there was evidence giving rise to probable cause a crime has been or is being committed or spying is being done by a foreign agent and that a domestic wiretap would reveal it.

In the case of a possible foreign agent, the application would be to the FISA court, Rothstein said.

Contributing: Nicole Gaudiano