Bill Clinton should take heed.
Second terms have a way of unraveling.
Dwight Eisenhower was battered by recession, Sputnik and criticisms of his foreign policy. Richard Nixon, upended by Watergate, never got to finish his. Ronald Reagan barely escaped getting impeached over Iran-contra, but he, like Eisenhower, used up most of his agenda in his first term. Second terms have built-in problems. Overnight, the victorious incumbent becomes a lame-duck.