Final answer:
Bill Barr is the third-party candidate who did not have any significant impact on the 1992 presidential election, unlike Ross Perot.
Step-by-step explanation:
The 1992 United States presidential election was a significant political event that marked the end of the Cold War era and saw the election of Bill Clinton, a Democrat, as the 42nd President of the United States. The election took place on November 3, 1992.
In the 1992 presidential election, the third-party candidate who did not have any significant impact on the election was Bill Barr. The significant third-party candidate in that election was Ross Perot, who won nearly 20 percent of the popular vote but did not win any electoral votes.