How likely is a complete GOP shutout?

[Sam Spade]

Hard to say this early out, but I would wager at about a 25% chance right now.  IL-08 is probably the most likely switch of anything at this moment, up there are some Governor's (Iowa, Maine, Michigan) races and maybe New Jersey in the Senate.

In terms of the House, what is not helping Republicans in gaining any is that there are no Dems retiring from GOP-leaning House seats in the Prez elections.  The closest one is OH-06, which was essentially 50-50 in 2004. 

In comparison, in 1994, the Dems won 4 open GOP seats.  Each one of these seats was D+5 or more in terms of the averaged and weighted Prez results from 1992/1996.  There are no low-lying fruit for the GOP this time.

I actually forget whether the Dems picked up a Governorship that year.  No Senate seats were picked up.

It's kinda pathetic, actually, when you think about it.