The 41st president may have experienced the steepest downward slide of any commander-in-chief. On the heels of victory in the first Gulf War, George H.W. Bush enjoyed a Gallup approval rating of 89% in February of 1991. Just over a year later, a sputtering economy and rising inner-city crime caused that number to drop down to 29%.  He lost his reelection effort to Bill Clinton in 1992.