I used to watch the Daily Show first with Craig Kilborn and then Jon Stewart. Kilborn was really funny and I don't know why the got rid of him. Stewart was really funny up until about the time Jon Kerry ran against George W Bush. Kerry was a walking joke generator but Stewart started to get real popular at that time and either it was his choice or, more likely, the choice of Viacom that he not make any jokes at all about Kerry. I was very disappointed because up until that time he was pretty fair, for a Democrat, on who he roasted. Naturally he made fun of Republicans more than Democrats but not by much. When Kerry ran Stewart never again roasted a Democrat. Kerry made it so easy for any comedian to make fun of but not a single joke from Stewart or anyone else, for that matter, was make about Kerry. I still watched The Daly Show a few more years but eventually it just stopped being funny. Then they replaced Stewart with that other guy and he was less funny than Stewart.
And the thing is I don't blame Jon Stewart for not being funny. I think he can be a really funny guy if you untie his hands. When you're jokes become completely one sided they tend to just be repeats of previous jokes and they become less and less based on reality and that is exactly what happened to Stewart. In order for some jokes (not all) they have to have an element of truth to them. Stewarts jokes were based on Democrat fantasy instead of truth like they used to be.
This is why Kimmel and Colbert's late night shows flopped. They were too one sided and the jokes were based on Democrat fantasy rather than any kind of truth. Fallon still is commanded to lampoon Republicans but he doesn't base his show around it. He does is obligatory anti-Republican/anti-Trump jokes and then he is done and is all about having fun. That is why his show isn't suffering as badly as Kimmel and Colbert. Kimmel and Colbert are true believers and very devout to the Democrat party. Fallon is all about having fun.
If the Democrats weren't such major control freaks and if they didn't control the media they probably would be laughed out of existence, either that or the Democrats would not have gotten away with 90% of every piece of crap they shoved and still try to shove down everyone's throats.
I never watched Maher because he always came across as smug and full of himself.