当地时间4月14日，奥巴马正式宣布支持美民主党总统竞选人拜登。他在推文中写到“我自豪地支持我的朋友乔伊·拜登竞选美国总统”。

　　在推文所附的视频里，奥巴马表示，“选择拜登做副总统是我最棒的决定之一，他成为了我的好朋友，我也相信他能够成为我们目前所需要的总统。”

　　随后，奥巴马陈述了拜登在其政治生涯中的一系列成绩，包括在经济大萧条时期重振美国经济、拯救美国汽车产业、保护中产阶级利益、抗击H1N1及埃博拉病毒等，并表达了“拜登能够引领美国渡过最黑暗时期”的信心。

　　Barack Obama endorsed Joe Biden's White House bid on Tuesday, saying his longtime vice president can unify and "heal" a nation struggling through some of its darkest moments.

　　The formal backing by perhaps the most popular politician in America is the latest boost for Biden's surging candidacy, and a further sign that Democratic leaders are rallying around the party flagbearer more than six months before November's election.

　　"Joe has the character and the experience to guide us through one of our darkest times and heal us through a long recovery," Obama said in a 12-minute video.

　　"I believe Joe has all the qualities we need in a president right now." "Joe helped me manage H1N1 (influenza) and prevent the Ebola epidemic from becoming the type of pandemic we're seeing now," Obama said.