Sen. Bernie Sanders Bernie SandersSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll Schumer, Sanders call for Senate panel to address election security MORE (I-Vt.) said President Trump's claim that former President Obama wiretapped Trump Tower last year is just the latest example in a long list of "delusional" statements.

“Every other day President Trump sadly says something which is totally preposterous,” Sanders said Thursday on CNN’s “The Situation Room.”

“And now he’s come up with the idea that his phone was tapped by President Obama,” Sanders told host Wolf Blitzer. "I think this just adds to a lot of the delusional statements that we hear from President Trump.”

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Sanders went on to tick off a few of Trump's other false statements.

“A little while ago, he talked about 3 [million] to 5 million people voting illegally last election — total nonsense,” he said.

“He talked about how he won the Electoral College in a wider margin than any other candidate in recent history — total nonsense,” the 2016 Democratic presidential candidate added. "He saw people celebrating in New Jersey the destruction of the Twin Towers — total fiction.”

Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellSenate Republicans signal openness to working with Biden Hillicon Valley: DOJ indicts Chinese, Malaysian hackers accused of targeting over 100 organizations | GOP senators raise concerns over Oracle-TikTok deal | QAnon awareness jumps in new poll The Hill's Campaign Report: Biden asks if public can trust vaccine from Trump ahead of Election Day | Oklahoma health officials raised red flags before Trump rally MORE (R-Ky.) said earlier Thursday it is “appropriate” for the Senate Intelligence Committee to examine Trump’s claims.

The committee is already probing Russia’s meddling in the 2016 presidential race, and the White House has suggested making Trump’s claim a part of that wider investigation.

Sen. Lindsey Graham Lindsey Olin GrahamSenate Republicans signal openness to working with Biden Loeffler calls for hearing in wake of Netflix's 'Cuties' Quinnipiac poll shows Graham, Harrison tied in South Carolina Senate race MORE (R-S.C.) said Thursday he is willing to subpoena intelligence agencies to get information relating to the controversial allegation.

“All I can say is that the country needs an answer to this,” he said on CNN. "The current president has accused the former president of basically wiretapping his campaign.”

Graham and Sen. Sheldon Whitehouse Sheldon WhitehouseRestaurant owner defends calamari as 'bipartisan' after Democratic convention appearance Warren calls on McConnell to bring Senate back to address Postal Service Senate Democrats demand answers on migrant child trafficking during pandemic MORE (D-R.I.) on Wednesday asked the Justice Department and the FBI to hand over any potential applications for a warrant to wiretap Trump’s campaign.

Trump seemingly blindsided lawmakers over the weekend by claiming, without evidence, that Obama had his “wires tapped” before Election Day.

“Terrible!" Trump tweeted March 4. "Just found out Obama had my ‘wires tapped’ in Trump Tower just before the victory. Nothing found. This is McCarthyism!"