Senator Lindsey Graham and Joe Biden have been friends going back to their days in Congress during the 1980s. But impeachment has apparently altered their relationship — perhaps permanently.

Graham has requested documents on Hunter Biden and his Ukraine adventures. But father Joe is apparently very protective of his wayward son, and personally attacked his friend for even suggesting it.

Fox News:

Former Vice President Joe Biden said Friday he is “embarrassed” for his former Senate colleague Lindsey Graham, R-S.C., over his request for documents pertaining to Hunter Biden and Ukraine. But Biden’s further remarks about Graham drew a response on Twitter from Trump lawyer Rudy Giuliani, who wrote that Biden’s comments amounted to “a threat to a U.S. Senator,” and reminded the former federal prosecutor of “my old mafia cases.” During an interview with CNN’s Don Lemon, Biden also criticized President Trump, claiming Graham cannot break with the president for fear of losing his Senate seat in 2020.

Graham has sent a letter to Secretary of State Mike Pompeo requesting the release of any documents related to contacts between Joe Biden, Hunter Biden, and former Ukrainian President Petro Poroshenko. Biden, whose own contacts with the Ukrainian government are being questioned, responded with a political attack.

Graham’s letter, which was released as the final day of public hearings in the House impeachment inquiry into Trump wrapped up, asked Pompeo to release a series of documents and transcripts of conversations in 2016 between Biden and Poroshenko in relation to an investigation into the Ukrainian natural gas company, Burisma Holdings. Burisma – specifically, Hunter Biden’s role on the company’s board of directors – has become one of the main talking points from Trump and the Republicans amid the impeachment inquiry into the president. In his interview with CNN, Biden said he is “quite frankly… angered” by Graham’s move.

To judge Trump, it is only fair to uncover what the previous administration was doing with Ukraine. The president says he was trying to assist the Ukraine government in rooting out corruption. Wouldn’t it be useful to discover what the Obama administration had been doing in that regard?

But “fairness” is not in the Democrat’s lexicon when it comes to the impeachment of Donald Trump. And while Graham may, indeed, need Trump’s endorsement to ease his path to re-election, to suggest that the senator is acting in an equally partisan manner as Biden only exposes the Democrat’s rabid, hysterical partisanship in the matter.