By Brent Baker | November 14, 2012 | 1:40 AM EST

Actor/comedian Robert Klein (IMDb page) let loose on Monday night’s Late Show, roaring back with his fists raised, shrieking a loud, guttural “yeah!” to celebrate President Barack Obama’s re-election.

And then he flicked his hand under his chin to flip off Ann Coulter as he exclaimed: “Ann Coulter, this one’s for you, baby!”

By Brad Wilmouth | June 12, 2010 | 12:58 PM EDT

Appearing as a guest on Friday’s Late Show with David Letterman on CBS, left-wing comedian Robert Klein suggested that it was bad that Rush Limbaugh turned out to be in good health after his hospital visit in Hawaii, inspiring laughter from Letterman. Klein: "You lose some, you win some." After Letterman brought up the birther conspiracy theory that President Obama was not born in America, Klein, who is known for attacking conservatives in his comedy act over sex scandals while being softer on liberals, changed the subject to Limbaugh’s fourth marriage to suggest that Limbaugh is hypocritical for opposing same-sex marriage, and then joked about the possibility of the conservative talker having health problems. Klein:

What's his name, Rush Limbaugh, who believes so much in the sanctity of marriage he's done it four times now, you know, but, you know, not if he, doesn't approve of marriage if both the husband and wife are circumcised, you know, that's out of the questions. I think a lot of that came from him, and, you know, he was in the hospital couple of months ago in Hawaii. Turned out to be nothing. See? You lose some, you win some. But anyway.

Below is a transcript of the relevant portion of the Friday, June 11, Late Show with David Letterman:

By Brad Wilmouth | June 8, 2010 | 8:50 AM EDT

On Monday’s Joy Behar Show, after a segment on long-time journalist Helen Thomas’s recent outburst that Israeli Jews should "get the hell out of Palestine" and "go home" to Germany and Poland, host Behar held over guest and comedian Robert Klein to talk about his comedy show, titled Robert Klein: Unfair and Unbalanced. After Behar asked if the title was meant to be a jab at Fox News, Klein referred to the false premise that liberals are not included on FNC, and cracked that there have not been any liberals since on FNC since former host Alan Colmes was "sent back to Poland," which could be interpreted as a Nazi joke about Fox News: "They haven`t had a liberal on that thing since Alan Colmes was, you know, sent back to Poland. ... Emotional scars that boy has on that network." Behar added that Colmes and Helen Thomas are "on the train right now." Klein concluded that FNC’s "Fair and Balanced" theme is "pretty ludicrous." Colmes, notably, still appears regularly as an analyst on FNC.

Klein also made it known that he prefers to attack conservatives over sex scandals because of the hypocrisy issue, while the treating sex scandals of Democrats as less important because they are not "values guys" anyway:

By Kyle Drennen | June 7, 2010 | 2:57 PM EDT

Promoting his latest HBO special on Monday's CBS Early Show, comedian Robert Klein turned his attention to the Gulf oil spill and who's to blame: "...we're all to blame. We're pigs. It's a parable for us. American pre-eminence is not guaranteed and unless we learn that this stuff has dangers – where are all those 'drill, baby, drills' now?" [Audio available here]

Those comments were prompted by co-host Harry Smith remarking: "BP would be such a spectacular target for your lampooning." Klein went on to add: "...all that oil that's fouling everything, it probably wouldn't run the automobiles in Texas for one day." Smith chimed in: "An hour." Klein proclaimed: "...it's minuscule, that's how much we use of that stuff. So let's get off it. I mean, and it's coming back to us in bullets, everybody knows this. But Americans have a memory of about 12 seconds."

On CBS's Sunday Morning program, a 'Fast Draw' segment by cartoonists Mitch Butler and Josh Landis similarly scolded Americans for wasting energy. Landis warned: "Our hunger for energy is driving oil companies to drill deeper and more dangerous wells..." Butler remarked: "Thankfully, these days everyone's talking about going green and saving energy. We know to ride bicycles to work instead of driving a car, don't use that air conditioner on a hot summer day. Air travel uses way too much energy. So don't take that vacation." However, Landis lamented: "...most Americans don't make enough of these kinds of sacrifices to save a meaningful amount of energy."