Tuesday, Stephen Colbert, the former conservative-mocking Comedy Central host, launched his career as David Letterman's replacement with a blatantly "partisan" bias. Wednesday his numbers fell off dramatically. 

Entertainment Weekly highlights the significant drop-off, which saw Jimmy Fallon, whose Tonight Show on NBC goes head-to-head with CBS' Late Show, topping Colbert among adults 18-49 and almost matching him on total viewers Wednesday.

In his opening night, Colbert far out-earned the competition, grabbing a 4.9 household rating and a 1.5 in the 18-49 demo. The same night, Fallon earned a 2.4 and .8 respectively, while Jimmy Kimmel took in 1.4 and .4. 

Wednesday, Colbert lost a significant percentage of his viewers, with a 3.2 overall and .8 in the demo. Fallon nearly matched him in overall viewers and beat him in the demo, 3.1 and 1.2 respectively. Kimmel again came in a distant third in both, 1.4/.5. 

Though the decline is likely in large part due to inflated numbers due to the host's opening night, tepid reviews and the political nature of Colbert's schtick may have turned some viewers off. 

After spending six minutes ripping Donald Trump—at one point featuring an image of the Republican frontrunner on the screen along with a picture of KKK members (above via GP)—Colbert somehow failed to direct a single shot at scandal-plagued Hillary Clinton. The new Late Show host was immediately called out for it: