U.S. presidents have a long history of making promises to win an election.
1. Woodrow Wilson won re-election in 1916 with the slogan, "He kept us out of war," only to enter World War I a year later.
2. Lyndon B. Johnson promised in 1964, "We are not about to send American boys 9 or 10 thousand miles away from home to do what Asian boys ought to be doing." During his presidency, the U.S. entered the Vietnam War.
3. Richard Nixon in 1968 claimed to, "have a secret plan to end the war," in Vietnam, but American troops were not withdrawn until 1973.
4. Jimmy Carter campaigned on solving the energy crisis. He was unable to get support for a gas tax, and the energy problem only worsened during his presidency.
5. Ronald Reagan during his campaign promised a constitutional amendment in 1982 allowing school prayer, it never went anywhere.
6. George H. W. Bush famously promised in 1988, "Read my lips: No new taxes." He raised taxes his first term.
7. Bill Clinton campaigned on renovation of the health care system. He attempted health care reform — "Hillarycare." It ended in failure.
8. George W. Bush promised to privatize Social Security and reduce government spending, neither of which were successful.
9. Barack Obama: Politifact traced 533 of Obama's promises, and found that only 48 percent of them he managed to keep.
Trump may not get the border wall, but he won't be the first president who didn't succeed with campaign promises.