Sen. Rand PaulRandal (Rand) Howard PaulOvernight Defense: Pompeo blames Iran for oil tanker attacks | House panel approves 3B defense bill | Trump shares designs for red, white and blue Air Force One Senate rejects effort to block Trump's Qatar, Bahrain arms sales Senate rejects effort to block Trump's Qatar, Bahrain arms sales MORE (R-Ky.) blocked a resolution calling for special counsel Robert MuellerRobert (Bob) Swan MuellerKamala Harris says her Justice Dept would have 'no choice' but to prosecute Trump for obstruction Kamala Harris says her Justice Dept would have 'no choice' but to prosecute Trump for obstruction Dem committees win new powers to investigate Trump MORE's report on the Russia probe be made public, marking the fifth time Republicans have blocked the House-passed measure.
 
 
"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.  
 
  
 
"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. 
 
 
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 BarrWilliam Pelham BarrTrump rips Democrats for contempt vote: 'Republicans will remember' Trump rips Democrats for contempt vote: 'Republicans will remember' The Hill's Morning Report - Trump and House Democrats resume battle 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.
 
 
Sen. Lindsey GrahamLindsey Olin GrahamMcConnell defends Trump amid backlash: 'He gets picked at every day' McConnell defends Trump amid backlash: 'He gets picked at every day' The Hill's 12:30 Report — Presented by MAPRx — Biden, Sanders to share stage at first DNC debate 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 SchumerCharles (Chuck) Ellis SchumerUS women's soccer team reignites equal pay push Blue Dogs look to move forward on infrastructure project Democratic strategist says Republicans are turning immigration debate into 'political football' 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.