Obama knew about Gun Walking in March 2009

 On March 23, 2011, Obama lied to the American people about Operation Fast and Furious. He said that neither he nor Attorney General Holder authorized the effort to arm the drug cartels in Mexico.
Several weeks later, on May 3, Holder lied to Congress. He said he did not know who approved Fast and Furious. He also lied when he said he "probably heard about Fast and Furious for the first time over the last few weeks."

In fact, as the video proves, the Obama administration and the Department of Justice were deeply involved in the operation from the start