I went over to the Onion for an older article I was trying to track down. It was always more liberal than conservative, but more often neither, and generally pretty spot-on funny.
It is much more strongly liberal snark, relying on mainstream journalism stereotypes for its humor now. Usually, just not funny, unless you think "hey, conservatives are stupid" is Wildean in its deftness. Very sad. One doesn't mind the skewering - in our better moments we even welcome the criticism with a wince - when it's a least somewhat evenhanded. O'Sullivan's First Law comes into play again.