Blagojevich was indicted by a federal grand jury in April 2009. Most of the charges were related to attempts to sell the Senate seat vacated by then-President-elect Barack Obama. On August 17, 2010, he was convicted on one of the 24 federal charges, a charge of lying to the FBI, and the jury was hung on 23 other counts. The defense did not call a single witness, claiming that prosecutors did not prove their case. Because the jury could not agree on the remaining charges, a mistrial was ordered for those counts. Within 15 minutes after the mistrial was declared, the prosecution team announced that they would definitely pursue a retrial on the 23 mistrial counts. A post-verdict court date was set for August 23, 2010.