根据一项调查，前副总统和2020年民主党候选人乔·拜登曾承诺巴拉克·奥巴马“永远不用担心”他会竞选白宫报告从纽约时报。
在2008年的总统竞选中，奥巴马在选择谁作为他的竞选伙伴上来回奔波。最后三名候选人包括拜登、印第安纳州参议员埃文·贝赫和弗吉尼亚州州长蒂姆·凯恩。
奥巴马的前两位战略家大卫·普劳夫和大卫·阿克塞尔罗德在竞选期间会见了所有三位候选人。两人都担心拜登无法停止讲话，这通常会导致言语失误。但是他们最终被拜登对共和党提名人约翰·麦凯恩参议员的洞察力以及他与家人的关系所打动。
此外，拜登承诺，他绝不会试图通过发起另一次总统竞选来篡夺奥巴马。特拉华州参议员告诉两位助手，他太老了，不能再次竞选白宫。他还说，他认为成为副总统是他漫长政治生涯的“顶点”。
“这很有帮助，”普劳夫告诉记者倍。拜登显然是三名候选人中唯一承诺永远不竞选总统的人。
2016年12月13日，在华盛顿特区白宫艾森豪威尔行政办公楼的南法庭礼堂，乔·拜登讲述了他的儿子博·拜登在签署《21世纪治疗法案》之前是如何爱巴拉克·奥巴马总统的。
在接下来的八年里，奥巴马和拜登将发展一种牢固的友谊，阿克塞尔罗德称之为“逐渐演变成爱情故事的猎枪婚姻”
但是“拜登蓄势待发的野心令双方都感到不安，”根据倍。2016年，奥巴马建议拜登不要竞选总统，尤其是在他的儿子博死后。据报道，奥巴马也对拜登在2020年参选表示怀疑。根据一个消息来源，今年早些时候奥巴马告诉拜登:“乔，你不必这么做，你真的不必。”
但是拜登继续努力，在4月份发起了他的第三次总统竞选。在竞选过程中，这位前副总统经常提到奥巴马及其政府的成就。他曾经说过，他最自豪的事实是，他们在白宫期间没有“丑闻的迹象”。
新泽西参议员科里·布克在第一轮民主党辩论中大声疾呼拜登经常谈论奥巴马。布克告诉拜登，“在这场竞选中，你比任何人都更需要奥巴马总统。你不能在方便的时候做，不方便的时候躲起来。”
奥巴马还没有在2020年民主党初选中施加太多压力，也没有任何迹象表明他会支持拜登。这位前副总统表示，他并不担心奥巴马没有支持他，称他想凭自己的实力赢得提名。
“我宁愿他不订婚，”拜登说告诉了倍当被问及是否感到失望时，奥巴马没有在7月份第一次辩论中引起关注的商业问题上为自己辩护。"我想公平地赢得这场比赛。"
JOE BIDEN PROMISED OBAMA 'WOULD NEVER HAVE TO WORRY' ABOUT FORMER VP RUNNING FOR PRESIDENT
Former Vice President and 2020 Democratic hopeful Joe Biden once promised that Barack Obama "would never have to worry" about him running for the White House, according to a report from The New York Times.
During the 2008 presidential campaign, Obama had gone back and forth over who to choose as his running mate. The final three picks included Biden, Indiana Senator Evan Bayh and Virginia Governor Tim Kaine.
Obama's top two strategists, David Plouffe and David Axelrod, traveled to meet all three candidates during the campaign. The two were worried about Biden's inability to stop talking, which often results in verbal gaffes. But they were ultimately impressed by Biden's insight into Senator John McCain, who was the Republican nominee, and his bond with his family.
Plus, Biden promised that he would never try to usurp Obama by launching another presidential bid. The Delaware senator told the two aides that he was too old to make another run for the White House. He also said he viewed being vice president as a "capstone" to his long political career.
"That was helpful," Plouffe told the Times. Biden was apparently the only one of the three candidates to promise to never run for president.
Joe Biden tells how his son Beau Biden loved President Barack Obama, before the signing of the 21st Century Cures Act, in the South Court Auditorium of the Eisenhower Executive Office Building of the White House in Washington, D.C. on December 13, 2016.
Over the next eight years, Obama and Biden would develop a strong friendship that Axelrod described as a "shotgun marriage that gradually turned into a love story."
But "Biden's simmering ambition was a source of unease for both men," according to the Times. In 2016, Obama advised Biden not to run for president, especially after the death of his son Beau. Obama also reportedly had doubts about Biden running in 2020. According to one source, earlier this year Obama told Biden: "You don't have to do this, Joe, you really don't."
But Biden pressed ahead, launching his third presidential bid in April. On the campaign trail, the former vice president frequently mentions Obama and the accomplishments of their administration. He once said he was most proud of the fact that there was not a "hint of scandal" during their time in the White House.
New Jersey Senator Cory Booker has called out Biden's frequent talk of Obama during the first round of Democratic debates. Booker told Biden that "You invoke President Obama more than anybody in this campaign. You can't do it when it's convenient and then dodge it when it's not."
