This marks a new low in MSNBC's Hillary hating. Yesterday, guest host David Shuster exploded at news that Chelsea Clinton is -- gasp! -- campaigning for her mother. When his guest, Bill Press, pointed out that the Bush twins did the same for their father, Shuster sputtered that Hillary Clinton is forcing her daughter to turn political tricks:

There's just something a little bit unseemly to me that Chelsea's out there calling up celebrities, saying support my mom ... doesn't it seem like Chelsea's sort of being pimped out in some weird sort of way?

(Via NewsBusters.)

Update: Holy bejesus! Hillary Clinton got word of Shuster's slimy commentary last night and responded today by threatening to boycott future presidential debates on the network. In a conference call with reporters, the Clinton campaign's communications director, Howard Wolfson, said: "I, at this point, can't envision a scenario where we would continue to engage in debates on that network." And, yes, that includes the scheduled Feb. 26 MSNBC debate from Ohio.

The network has temporarily suspended Shuster and apologized for his bilious outburst. Shuster offered his own non-apology today on "Morning Joe," but word is that he will offer an actual apology on "Tucker," tonight at 6 p.m. EST. We'll be watching.