They tried to impeach Richard Nixon in his second term. He left office in disgrace over offenses from his first term.
They tried ultimately to bring down Ronald Reagan, with investigations and hearings in his second term.
They tried to run investigations on GHW Bush in his one term.
Bill Clinton was impeached in his second term (but not removed from office).
They tried to run investigations and hearings on the GW Bush administration (the trumped up scandal of Plamegate among them).
Barack Obama has some big skeletons in his closet with the international scandals of Fast and Furious gun running and the murder of our Ambassador in Libya.
He may not remain in office or even out of prison by the time 2017 rolls around.