During his election, did not receive enough votes from the electoral college.

Okay, the other answer is wrong. The Electoral College's votes are what decide if you can be president or not. So people who actually became president (like Lincoln) did recieve enough votes from the Electoral College. However, during his own election, Al Gore didn't get enough votes from the Electoral College in the Presidential Election in 2000. That's why he lost the election, even though his popular vote was higher.
Hope this helps!

  the domino theory states that  if one country in a region came under the influence of communism, then the surrounding countries would follow in a  domino  effect.