I don't like or trust Zogby's polling, except to slant Left. So it is interesting to read his latest look at the Senate races, via the Wall Street Journal. The numbers are interesting, but the basics are these:
The Republicans hold 55 seats, the Democrats hold 44, and one seat belongs to Indecision. Assuming a 5-point or more lead represents a good hold, of the 17 races considered, Republicans incumbents are in good position to hold their seat in 7 races, the Democrats incumbents are in good position to hold their seats in 7 races, and of the remaining three races, two are tied (one Democrat incumbent, one Republican incumbent) and one race shows a Democrat running for a Democrat-held seat leading by less than a point. So even Zogby is admitting, in the numbers if not in his headlines, that the Republicans look good right now to hold what they have.