I didn't come up with the term, but I suppose I'll use it anyway. Christopher Shays became the first Republican to call for Tom DeLay's resignation this week, so Dana Milbank takes a gander at him in The Washington Post:

Shays seized a prominent role in the DeLay ethics controversy Saturday when he told constituents that the leader is "an absolute embarrassment to me and to the Republican Party." To DeLay's foes, Shays is a brave truth-teller; to DeLay's defenders -- and that includes the most powerful Republicans in Congress -- Shays is a self-righteous grandstander.

[...]

It's yet unknown whether Shays's rebellion remains the act of one gadfly or becomes the sort of movement that occurred after John B. Anderson became the first Republican in Congress in 1974 to call for President Richard M. Nixon's resignation. That nobody in the party has yet joined Shays reflects the enormous power and loyalty DeLay commands. A few colleagues have given Shays private encouragement, but a similar number have avoided eye contact with him.

For those who missed it, check out my interview with Congressman Anderson from back in November. Make sure to check back in this afternoon, also, for my interview with a former high ranking Republican Senator (and a moderate, to boot!).