The incumbent president has odds of 20-1 of gaining more than 400 votes from electors, according to Oddschecker. That implies he has just a 4.76 percent chance.

Joe Biden stands a better chance of a securing 400 electors, the odds aggregator said. The Democratic nominee is priced at 7-1, suggesting a probability of 12.5 percent.

U.K.-based bookmaker Betfair gave longer odds for both candidates of securing such a landslide in the Electoral College: Trump is priced at 31-1, while Biden has odds of 16-1.