Notice a pattern? The bottom line is that Senate races are very susceptible to national breezes. A wind was blowing in one party’s direction in all four of the previous election cycles, and it made a big difference in determining which party won the lion’s share of the competitive Senate seats. ~Chuck Todd, National Journal

Some of the possible victims of the anti-GOP mood? According to the Journal’s race rankings, Santorum continues to trail Casey in PA 38-46%, DeWine is competitive but probably in trouble in Ohio, and Jim Talent is lagging slightly in Missouri.