Speaking hours before the first one-on-one debate between Trump and Clinton, Fallon downplayed Trump's recent surge in the polls by pointing out that Clinton's lead in August was due to a post-convention bump and Trump's self-inflicted wounds after he criticized the Muslim family of a slain U.S. soldier.
"Now you are seeing the race reset to its natural equilibrium. This is a very polarized country, and it is the rule rather than the exception for presidential contests to be extremely tight," Fallon said in an interview with "Power Lunch."
A new poll from Bloomberg shows Trump leading Clinton by 2 points. Other polls have Clinton with a slight edge.
Clinton leads her Republican rival by just 1.5 points, according to a Real Clear Politics poll average, down from 2.4 points a day ago.
According to a new Washington Post-ABC News poll, Clinton leads Trump 46 percent to 44 percent. And in a Quinnipiac University national poll out Monday, Clinton has the support of 44 percent of likely voters, while Trump stands at 43 percent.