( CNN ) -- As the first week of the John Edwards federal criminal trial comes to an end , where the former Democratic senator and presidential candidate is accused of using hundreds of thousands of dollars of donations to conceal his affair with a campaign videographer without reporting the money to federal authorities , we wanted to take a look back at some statistics about other politicians in trouble . Based on these numbers , Edwards certainly is n't the first pol to get himself into some hot water -- personally , politically or legally . 2 - Number of presidents who have been impeached : Andrew Johnson in 1868 and Bill Clinton in 1998 . 1 - Number of U.S. presidents who have resigned from office : Richard Nixon , on August 8 , 1974 . 18Â½ minutes - Length of the `` gap '' in the tape of a recorded conversation from June 1972 between Nixon and Chief of Staff Bob Haldeman about a break-in at the Watergate Hotel in Washington . 15 - Days between the U.S. Supreme Court ruling against Nixon , that executive privilege of the president is not above the law , and Nixon 's resignation . 17 - Guilty verdicts in the retrial of Illinois Gov . Rod Blagojevich on corruption charges . He was sentenced in 2011 to 14 years . 4 - Governors of Illinois who have been sentenced to prison since 1973 . 5 - Number of days South Carolina Gov . Mark Sanford was `` missing '' after hiking on the Appalachian Trail in 2009 . The married governor revealed later that he had actually been in Buenos Aires , Argentina , visiting another woman . 57 - Percentage of people who think politicians seem to have a lot of sex scandals because they get caught more often . 19 - Percentage who say politicians have lower levels of morality than the rest of us . Client 9 - Code name of a `` subject '' listed on an affidavit as being involved in a prostitution ring investigated by the FBI in 2008 , identified as New York Gov . Eliot Spitzer . He resigned from office but was n't charged by federal prosecutors . $ 90,000 - Amount of `` cold hard cash '' found in the freezer of Rep. William Jefferson , D-Louisiana , after an FBI search that led to convictions in 2009 on 11 criminal counts , including bribery , money laundering and wire fraud . 7 years - Prison term for former Ukrainian Prime Minister Yulia Tymoshenko , found guilty in 2011 of abuse of authority for signing gas contracts with Russia . 101 - Current age of Bunny Mellon , a John Edwards presidential campaign donor and potential witness in his criminal trial . Around 1,400 - Text messages exchanged between Detroit Mayor Kwame Kilpatrick and his mistress , using city-issued cell phones . He eventually spent about 14 months in prison after a parole violation relating to charges of obstruction of justice and assault , and was released in 2010 . 2 - Number of members of Congress expelled for unethical conduct , since the Civil War . Rep. Jim Traficant , D-Ohio , was expelled in 2002 after convictions for bribery , racketeering and tax evasion , and Rep. Michael Myers , D-Pennsylvania , was expelled in 1980 for accepting money from undercover FBI agents . 1 - Congressman who voted to keep Traficant in the House . Rep. Gary Condit , D-California , was his sole support in a vote of 420-1 on July 25 , 2002 .
Two presidents have been impeached : Andrew Johnson in 1868 and Bill Clinton in 1998 . One president has resigned from office : Richard Nixon , on August 8 , 1974 . Two members of Congress have been expelled for unethical conduct since the Civil War . Four governors of Illinois have been sentenced to prison since 1973 .