UPDATE: In fast national estimates from Nielsen, “The Late Show” averaged 4.56 million viewers overall — its largest audience since premiere night — to easily lead late-night over “Tonight Show” (3.38 million) and “Jimmy Kimmel” (2.53 million). There was no change in 18-49 rating, with both the CBS and NBC programs earning a 1.0 rating. “Late Show” held the edge in adults 18-34 (1.0 vs. 0.8).

Presidential hopefuls continue to be a boon for late-night television, with Donald Trump’s visit to “The Late Show With Stephen Colbert” helping jump-start the nascent CBS program to its highest ratings since opening night.

In Nielsen’s 25 markets with Local People Meters, “Late Show” earned a 1.0 overnight rating in adults 18-49 to move up to a tie with NBC’s “The Tonight Show Starring Jimmy Fallon,” which had won the last nine nights outright. ABC’s “Jimmy Kimmel Live” (0.6) ranked third.

See More: Stephen Colbert, Donald Trump: The Art of the Funny, Polite, Not Fawning Interview

“Late Show” figures to win the night in total viewers, with its overnight household rating/share (3.7/10) comfortably ahead of “Tonight Show” (2.8/7). The CBS program has finished on top in the overnights on five occasions in its first 11 nights (though “Tonight” has won some of those in national total-viewer averages).

“Late Show” was up a big 42% vs. the comparable night a year ago, and Tuesday’s 3.7 is well above the show’s average (2.64) in the nights since its premiere did a 4.9 on Sept. 8. The 3.7 overnight rating is also a tick above the 3.6 that “Tonight Show” did when Trump visited on Sept. 11 (a Friday), while its 18-49 prelim rating was a bit below what the NBC program did that night (1.0 vs. 1.2).

Earlier this week, a visit by Carly Fiorina helped drive NBC’s “Tonight Show” to its top Monday overnight household rating (3.2/8 share) in 18 months.