Joe Biden, the Vice President of the United States, to set to guest star on an upcoming episode of Law and Order: Special Victims Unit. The 73-year-old politician will appear alongside Mariska Hargitay in the episode which will focus on "the backlog of untested rape kits", according to the White House. Biden will shoot his appearance on the show this Friday (29Jul16) in New York, with the episode set to air later this year (16).