Many a modern president has lost momentum and suffered what are termed "scandals" in his second term. President Barack Obama's current problems are part of that tradition. But with the exception of Richard Nixon, scandals have not proven fatal. Indeed, Ronald Reagan's Iran-Contra scandal and Bill Clinton's impeachment over the Monica Lewinsky affair were far more serious than what we know so far about Obama's involvement in Benghazi, the Internal Revenue Service or subpoenas of records of reporters' calls. Yet Reagan and Clinton finished their second terms as popular presidents. America's founding fathers created a system of government deliberately designed to protect liberties rather than be efficient. They feared giving the chief executive too much power and constrained the president with checks and balances to limit his actions. As one wag put it, the system ensured that King George III could not rule over us, nor for that matter, could anyone else.
Nye, Jr., Joseph S. "Obama Can Still Build a Second-Term Legacy." CNN.com, May 21, 2013.