Rand Paul pledges to force Hunter Biden vote if GOP backs Dem impeachment witnesses

Sen. Rand PaulRandal (Rand) Howard PaulTrump creates new headaches for GOP with top intelligence pick Congress set for clash over surveillance reforms Senate braces for fight over impeachment whistleblower testimony MORE (R-Ky.) sent a public warning shot on Monday night, saying that if Republicans support Democrats' impeachment witness requests, then he will force votes during the trial on calling witnesses conservatives want to hear from. 
 
"My colleagues can’t have it both ways. Calling for some, while blocking others," Paul tweeted, referencing a Politico report on a similar private warning he gave his GOP colleagues against supporting Senate Minority Leader Charles SchumerCharles (Chuck) Ellis SchumerOvernight Health Care — Presented by American Health Care Association — Lawmakers raise alarms over Trump coronavirus response | Top official warns virus appears inevitable in US | Democrats block two Senate abortion bills Lawmakers raise alarms over Trump coronavirus response Democrats block two Senate abortion bills MORE's (D-N.Y.) request that former national security adviser John BoltonJohn BoltonSchumer on Trump intel shakeup: 'Disgrace,' 'closer to a banana republic' Trump directly sought to block publication of Bolton's book: WaPo 'Parasite' studio fires back after Trump criticism: 'He can't read' MORE testify. 
 
"If we are going to give a platform to witnesses the Dems demand, I look forward to forcing votes to call Hunter Biden and many more!" Paul continued. 
 
 
Paul's public warning comes as Senate Republicans are privately haggling over the rules resolution for President TrumpDonald John TrumpWinners and losers from the South Carolina debate Five takeaways from the Democratic debate Democrats duke it out in most negative debate so far MORE's impeachment trial. 
 
 
Collins has not said if she would support calling witnesses, agreeing, along with the rest of the Senate GOP conference, to delay that decision until after opening arguments and questions from senators. 
 
Sen. Mitt RomneyWillard (Mitt) Mitt RomneyLawmakers raise alarms over Trump coronavirus response Romney: Trump administration unprepared for coronavirus outbreak Ex-Romney adviser praises economic populism MORE (R-Utah) has said that he wants to hear from Bolton during the trial but has not specified how he thinks his testimony should be given. Bolton was one of four witnesses requested by Democrats and said he would testify if subpoenaed. 
 
"I support the Clinton model, which means that we will have opening arguments first. Then we'll have a vote on witnesses, and at that stage I presume I'll be voting in favor of hearing from John Bolton, perhaps among others. That could change," Romney told reporters on Monday. 
 
Democrats would need to peel off four Republican senators to successfully call a witness or compel the administration to hand over Ukraine-related documents. 
 
Senate Majority Leader Mitch McConnellAddison (Mitch) Mitchell McConnellRepublicans give Barr vote of confidence Democrats block two Senate abortion bills VA could lead way for nation on lower drug pricing MORE (R-Ky.) has said he does not believe either side should call witnesses and warned Democrats last month that if they successfully call a witness, Republicans could try to call individuals Democrats would oppose, such as Hunter Biden.

McConnell told Fox News Radio that opening the door to witnesses would pave the way for a "kind of mutual assured destruction," adding that Republicans would "want the whistleblower. We're going to want Hunter Biden."

"You can see here that this would be a kind of mutual assured destruction episode that would go on for a long time," McConnell said. 

Alexander Bolton contributed.