"I congratulated him on his elevation, I asked if he could possibly help me," Biden then joked, in a clip which can still be viewed on the Obama White House YouTube page, according to the NY Post.

And as American Thinker frames it:

During the 2016 campaign, candidate Trump made a joke about asking Russia for help in finding Hillary Clinton's deleted (and bleach-bitted) emails from her private server, and that was taken as evidence for launching an FBI investigation and subsequent special counsel probe on non-existent "collusion" with Russia. Yet back in 2013, Joe Biden, whose son was hauled around on Air Force Two to help him make lucrative deals with foreign powers including China, openly "joked" about asking Beijing for help becoming president, and we are only hearing of it this weekend: