Graham: Mueller was 'pretty much a figurehead' of investigation

Graham: Mueller was 'pretty much a figurehead' of investigation
© Aaron Schwartz

Sen. Lindsey GrahamLindsey Olin GrahamGraham throws support behind Trump's Turkey sanctions Hillicon Valley: Warren takes on Facebook over political ads | Zuckerberg defends meetings with conservatives | Civil liberties groups sound alarm over online extremism bill Fury over Trump Syria decision grows MORE (R-S.C.) said Thursday that he believes former special counsel Robert MuellerRobert (Bob) Swan MuellerFox News legal analyst says Trump call with Ukraine leader could be 'more serious' than what Mueller 'dragged up' Lewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it Fox's Cavuto roasts Trump over criticism of network MORE was just a "figurehead" at the top of the investigation into the Trump campaign and pledged to investigate the probe's origins.

Graham told reporters on Capitol Hill that the GOP-controlled Senate would continue efforts alongside Attorney General William BarrWilliam Pelham BarrBarr bemoans 'moral upheaval' that has brought 'suffering and misery' Trump threatens to sue Schiff and Pelosi Democratic lawmaker says Barr's reported meeting with Murdoch should be investigated MORE to investigate whether the probe into the Trump campaign was begun improperly.

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"Yeah, I talked to him last night, we talked about ... I told him I'll try to find out how all this mess started, and went so long," Graham said, apparently referring to President TrumpDonald John TrumpBusiness school deans call for lifting country-specific visa caps Bolton told ex-Trump aide to call White House lawyers about Ukraine pressure campaign: report Federal prosecutors in New York examining Giuliani business dealings with Ukraine: report MORE.

"It's clear to me that Bob Mueller was pretty much a figurehead of the investigation," Graham added. "We'll dig in and find what happened."

Barr announced earlier this year that the Justice Department would begin a review of the early stages of the investigation into Russian interference into the presidential election.

The FBI's probe into Russian meddling began in 2016. The special counsel's investigation began when then-Deputy Attorney General Rod RosensteinRod RosensteinTrump attacks Sessions: A 'total disaster' and 'an embarrassment to the great state of Alabama' Mueller rejoins DC law firm Lewandowski says Mueller report was 'very clear' in proving 'there was no obstruction,' despite having 'never' read it MORE appointed Mueller after Trump fired James ComeyJames Brien ComeyComey says he has a 'fantasy' about deleting his Twitter account after end of Trump term We need answers to questions mainstream media won't ask about Democrats Trump 'constantly' discusses using polygraphs to stem leaks: report MORE as FBI director.

Republicans have argued for months that the Russia investigation, which ended earlier this year without any criminal charges targeting further members of the Trump administration, was improperly launched during the Obama administration as a means of spying on the Trump campaign.

The Mueller probe resulted in criminal charges and convictions for multiple former members of the president's inner circle before its shuttering this spring.

— This story was updated at 1:16 p.m.