Sitting President George W. Bush rode with former presidents George H.W. Bush and Bill Clinton on Air Force One to the funeral Mass of Pope John Paul II’s in 2005. Yet when Trump was told that Biden would also be attending the Saturday ceremony, he didn’t give his political rival much thought.

Former President Joe Biden, the nation's second Catholic president, will attend Pope Francis's funeral this weekend in Rome. "President Biden and Dr. Biden will attend Pope Francis’ funeral," a Biden spokesperson confirmed to the Washington Examiner.

Former President Joe Biden and former First Lady Jill Biden will attend the funeral of Pope Francis on Saturday, his office told AFP.