The word for today is... DIONIAN!

DIONIAN: The act of falling below what was once thought the absolute rock bottom for Liberal Party support.

Funny lines from today's Winnipeg Free Press:

Ignatieff, on the other hand, leads a Liberal party that has retreated to Dionian levels of popularity. It must be a shock to have the same performance rating as man universally associated with political failure. (In fact, if you look in the dictionary under "political failure" you will find a picture of Dion. Unfortunately, the photo is so out of focus it's hard to tell who it is, so you'll have to take my word for it.)