Trump is a jackass, so he lies about everything. Kimmel has the second-highest viewership in the States, behind Colbert.

If we want to talk numbers, Trump's "The Apprentice" had a max 20 million viewers (peak was in season 1 😂), which took a nosedive each year for the entire run of the show.

Kimmel's YouTube channel has over 13 BILLION views with over 20 million subscribers and gaining over 100,000 new subscribers per month. Factor in viewers from TV and he destroyed Trump's show no contest.