Final answer:
Al Gore was the Democratic nominee for the 2000 presidential election, where he chose to distance himself from President Clinton's controversies, possibly affecting his voter support.
Step-by-step explanation:
Al Gore was the Democratic party nominee for the 2000 presidential election. During the election, he faced a notable challenge from third-party candidates, including Ralph Nader of the Green Party. Gore's campaign strategy included distancing himself from the controversies of President Clinton, despite their party affiliation, and choosing Joseph I. Lieberman as his running mate for his strong moral stance. However, this led to alienation from some Clinton supporters. The 2000 presidential race was highly competitive and is historically significant for its controversial conclusion, with George W. Bush winning the presidency.