"I think the challenge here is that President Obama wouldn't physically go over and wire tap Trump Tower", Nunes said.
Nunes told reporters Wednesday there was no evidence of the claim after the White House continued to claim Trump was surveilled.
Regarding the matter of possible ties between the Trump campaign and Russia, White House Spokesman Sean Spicer said it would be "premature" for the president to accept the findings of both the House and Senate intelligence panels. Last week, Graham - who is clearly skeptical of the wiretapping claim and chairs a subcommittee looking into it - asked the Justice Department and the Federal Bureau of Investigation to provide copies of any warrants or court orders related to the alleged wiretapping.
"As I told you last week, in regard to the president talking about tapping Tower".
Another intelligence hearing, with testimony from other witnesses, is scheduled for 28 March.
"How low has President Obama gone to tap my phones during the very sacred election process", Trump tweeted on March 4.
The New York Times also reported on January 19, 2017, that communications between Trump associates had been intercepted as part of a "broad investigation" looking at links between the Trump campaign and Russian officials. He said there was evidence that crimes were committed in revealing communications between former Trump National Security Advissr Michael Flynn and the Russian ambassador to the US.
Graham says he knows of no evidence of such a warrant, but added that he's now "getting concerned, because it's taking so long to answer my letter".
"I think the president has one of two choices: either retract or to provide the information that the American people deserve", McCain said on Sunday.
US President Donald Trump and former President Barack Obama walk out of the East front prior to Obama's departure from the 2017 Presidential Inauguration at the US Capitol in Washington, DC, USç January 20, 2017.
South Carolina Sen. Lindsey Graham confirmed that he and Rhode Island Sen.
The White House requested a congressional investigation into "whether executive branch investigative powers were abused in 2016". Instead, according to the Trump lackey, the President was referring to general surveillance activities.