Bill Maher, who says he is the most frequent guest on “The Tonight Show with Jay Leno” over the past 20 years, sat with Leno Tuesday night and proved once again why political comedians are killers. Maher recapped his feud with Donald Trump, calling Trump an “insufferable racist,” an “egomaniac,” and perhaps most insulting of all, “a pop reference from the 80s. In return, Trump merely posted a couple of pathetic tweets attacking Leno and Maher:

“I’ve always defended @jayleno but he never defends me. He’s not a loyal person & I now understand why everybody dumped him. Jay sucks!”

“I hear this moron @billmaher said nasty things about me (hair etc—boring) on the terminated @jayleno show. Stupid guy/bad ratings!”

Bill Maher is part of a slate of political comedians, including Jon Stewart, Stephen Colbert, some of their cohorts such as John Oliver, and John Fugelsang, with whom, if you’re a politician, you just don’t want to tangle. These guys write the best material, in some cases along with their writers, and deliver it in deft ways. Recall Stewart’s appearance on CNN’s “Crossfire” in 2006, slamming hosts Tucker Carlson and Paul Begala for “hurting America.”

It’s also worth noting that all of this effective and funny political comedy is coming from the Democratic or progressive side. When Republicans and conservatives try political comedy, it falls painfully flat.

Bill Maher and this crop of political comedians are looked to not just as a top source of comedy, but as a top information source as well. They deserve both honors.