He had not only come through the political hurricane that felled four other incumbent House Republicans from New England, but now his opponents need his vote and his vocal support in order to give their ideas the image of bipartisanship. (Lightman)
Shays will spend his time supporting the Democratic majority on issues he cares about, like ethics reform. Weirdly, he may actually have more power and influence now than he did when his own party controlled the House--not only is the Northeast in general more influential, but Shays, who is sort of playing the role Joe Lieberman played in the Senate for a long time, can make a very effective go of it by being the token Republican to support various Democratic measures, and by being a moderating influence.
Which means that unless Democrats in the 4th District can field a stellar candidate in 2008, Shays might be around for a long while to come. The major points against him last time were Iraq and his party affiliation. He moderated his position on the former and the latter may turn out to be a strength in 2008.
For now, however, I have a feeling we'll be hearing a lot about Rep. Shays in the months to come.
Lightman, David. "For Shays, New Term With No Old Faces." Hartford Courant 5 January, 2006.