Sen. Rand PaulRandal (Rand) Howard PaulMcConnell halts in-person Republican lunches amid COVID-19 surge Biden's Cabinet a battleground for future GOP White House hopefuls Loeffler isolating after possible COVID-19 infection MORE (R-Ky.) blocked a resolution calling for special counsel Robert MuellerRobert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE's report on the Russia probe be made public, marking the fifth time Republicans have blocked the House-passed measure.
 
Sen. Mark WarnerMark Robert WarnerHarris shares Thanksgiving recipe: 'During difficult times I have always turned to cooking' Biden leans on foreign policy establishment to build team Trump relents as GSA informs Biden transition to begin MORE (D-Va.), the vice chairman of the Senate Intelligence Committee, asked for unanimous consent on Thursday to pass the resolution, which cleared the House in a 420-0 vote earlier this year. 
 
"What we're talking about is basic transparency, let's make sure the full Mueller report is released to Congress … and then let's make sure the American people see as much of this report as possible," Warner said from the Senate floor. 
 
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He added that to warn future campaigns and candidates about potential election interference "we need to fully understand what the Russians were trying to do."
 
Under Senate rules, any one senator can request that any bill or resolution be passed. But because it requires the signoff of every senator, any one senator can also block their request.  
 
  
Paul argued that Congress still needs to figure out the "entire story" including the origins of the investigation into President TrumpDonald John TrumpPennsylvania Supreme Court strikes down GOP bid to stop election certification Biden looks to career officials to restore trust, morale in government agencies Sunday shows preview: US health officials brace for post-holiday COVID-19 surge MORE's campaign and a controversial research dossier compiled against then-candidate Trump. 
 
"I think it's very important that we not turn our country into this back and forth where each successive party tries to use the apparatus of government to investigate the previous president," Paul said. 
 
"What we don't know is was President Obama told that the evidence to get this investigation started was paid for by the Hillary ClintonHillary Diane Rodham ClintonGroups seek to get Black vote out for Democrats in Georgia runoffs Biden's political position is tougher than Trump's Valadao unseats Cox in election rematch MORE campaign? We need to know that," Paul continued. 
 
Paul has warned that he would block the resolution backing the Mueller report's release unless information about the opposition research dossier compiled against Trump was also released. He first blocked the House-passed resolution last week. 
 
"It was so scandalous and so unverified and has turned out to be untrue, and yet this was the basis for the beginning of the investigation. This was the basis for doing something extraordinary," Paul added on Thursday of the dossier. 

A 2018 memo from the House Intelligence Committee, which was controlled at the time by Republicans, found that the FBI's counterintelligence investigation into whether Trump campaign officials had improper contacts with Russia was triggered by information the bureau obtained about George Papadopoulos, a former adviser to the campaign. 

Thursday's floor drama comes after The New York Times reported that some members of Mueller's team believe the four-page letter from Attorney General William BarrBill BarrNew DOJ rule could allow executions by electrocution, firing squad Clyburn: Biden falling short on naming Black figures to top posts Five federal inmates scheduled for execution before Inauguration Day MORE that summarized the principal conclusions didn't sufficiently portray their findings, which they suggested could be more damaging to Trump than Barr conveyed.
 
It marks the fifth time Democrats have tried to pass the House resolution, which says there is “overwhelming public interest” in the government releasing the contents of the high-profile Mueller report. The resolution calls on the Justice Department to fully release the report to Congress and to release it to the public “except to the extent the public disclosure of any portion thereof is expressly prohibited by law.”
 
Mueller handed over his report to the Justice Department, marking the formal end to his two-year investigation. Barr is expected to testify on the report early next month.
 
In addition to Paul, Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellMcConnell halts in-person Republican lunches amid COVID-19 surge Biden and reproductive health rights Biden's Cabinet a battleground for future GOP White House hopefuls MORE (R-Ky.) has twice blocked the House resolution from being passed, arguing that Barr is currently working with Mueller to determine what from the report can be released. 
 
Sen. Lindsey GrahamLindsey Olin GrahamBiden's Cabinet a battleground for future GOP White House hopefuls Republicans ready to become deficit hawks again under a President Biden Let's give thanks to Republican defenders of democracy MORE (R-S.C.), the chairman of the Senate Judiciary Committee, has also blocked the House-passed resolution.
 
Graham voiced opposition to the resolution, citing Senate Minority Leader Charles SchumerChuck SchumerProtect America's houses of worship in year-end appropriations package Club for Growth to launch ad blitz in Georgia to juice GOP turnout Inequality of student loan debt underscores possible Biden policy shift MORE's (D-N.Y.) refusal to amend it to include a provision calling on the Justice Department to appoint a special counsel to investigate alleged department misconduct in the handling of the investigation into 2016 Democratic candidate Hillary Clinton's email use and the Foreign Intelligence Surveillance Act applications related to Trump campaign adviser Carter Page.