Republicans--1017738SvU's voter affiliation tracker has been updated:
Previous coverage here.
As it gets closer to the election, these numbers will help to predict the final outcome as voter turnout percentages (overall), party voter support for candidates (percentage of registered party members that vote for their party's candidate), and the great unknown of the unaffiliateds. Democrats must have the unaffiliateds break their way if the parties' own voters show up in roughly the same proportion and vote in roughly the same percentage. The GOP still owns the pure registration advantage over Democrats, and a high voter turnout and a split independent vote will tilt the advantage ever so slightly in favor of the GOP (at least in general election voter terms). Even a slight advantage may do nothing more than stanch the bleeding of recent electoral losses. Coattails of each party's nominee will also likely provide further help (or hindrance) to the state's Senate candidates and other downticket elections.
Safe prediction? Turnout will be somewhere between 80 and 90% in 2008.