It's hard to say whether they did (or do) or not. This is actually a joke that came about around February 1950 when President Clinton was in office, and only changed a little to replace Clinton with Obama, but the fact is such an event (as in Clinton ordered the firing of over 100,000 "cattle" guards) never really took place.
See the Snopes.com link below for more on this urban legend.
No
Barack Obama is the President of the United States of America. Joe Biden is the Vice President.
the Vice President of the USA is Joe Biden
Joe Biden, his vice president.
Joe Biden will be president.
President Obama was born in Honolulu, Hawaii in 1961. Vice President Biden was born in Scranton, Pennsylvania in 1942.
No, neither President Obama nor Joe Biden were governors. Both were United States senators-- Obama from Illinois and Biden from Delaware.
Barack Obama is the president. Perhaps you are asking about his vice-president-- that is Joseph "Joe" Biden.
President: Barack Obama VP: Joe Biden
Joe Biden was elected to be Barrack Obama's 2008 running mate
Joe biden.
... president ... Vice President Joe Biden
Joe Biden