Where an attorney persisted in litigation through summary judgment after discovery revealed a complete lack of evidence, imposition of sanctions under Rule 11 was not abuse of discretion.The 7th U.S. Circuit Court of Appeals affirmed a decision by U.S. District Judge Joan Humphrey Lefkow.Joseph S. McGreal was a southwest suburban Orland Park police officer until he was dismissed in 2010. McGreal’s firing occurred after he spoke at a November 2009 village board meeting.At that meeting, McGreal suggested several …