Barack Obama  is an American politician who served as the 44th president of the United States from 2009 to 2017.

In the November 2004 general election, Obama won with 70 percent of the vote, the largest margin of victory for a Senate candidate in Illinois history. 

Obama  taught constitutional law at the University of Chicago Law School for twelve years, first as a lecturer from 1992 to 1996, and then as a senior lecturer from 1996 to 2004

 During Afghanistan and pakistan war Obama claimed that the U.S. "cannot succeed in Afghanistan or secure our homeland unless we change our Pakistan policy.

Barack obama advised U S National Security to authorized a "surgical raid"(rejected a plan to bomb the compound) to be conducted by United States Navy SEALs.The operation took place on May 1, 2011, and resulted in the shooting death of bin Lade