Factionalization/Realignment Watch

In an article discussing the fact that Republicans are uninspired by their choices for President this year, we learn that:

A New York Times/CBS News poll last week found that none of the Republican candidates — not even the suddenly hot Mr. Huckabee — was viewed favorably by even half of Republican voters.

This means that whoever is the Republican nominee will likely have the support of less than 50% of the party's base. That amounts to between 15 and 20 percent of the electorate. I can't imagine many of those people voting for Obama, much less Hillary. Which means there's a good chance they'll have to look elsewhere in the general election- maybe a well-financed third-party run?