Wikipedia is very biased and leans left heavily. Also look up George Soros donating $2 million to Wikimedia. So many lefty editors and what not on Wikipedia that anything regarding politics is full of lies and half-truths. Avoid it as a source for information regarding such topics unless your prepared to deal with that bull crap.
Most to least bearable: Conan, Fallon, Kimmel, Colbert, Meyers, Maher, Noah, Oliver, (No idea who's directly to the right of Oliver, but him), and lastly Corden.