They aren't the only primaries tomorrow, but they are the marquee contests (plus the House special). If you nail the results, you get to brag. If you don't, hope that no one noticed.
Here are mine:
Pennsylvania Senate (D): Sestak 52, Specter 48
Pennsylvania 12th Special: Critz (D) 50.1, Burns (R) 49.9
(I thought this one would be an easy Republican pickup, but momentum appears to be with Critz.)
Arkansas Senate (D): Lincoln 47, Halter 42, Morrison 11
Arkansas Senate (R): Boozman 47, Holt 20, Baker 11, Other 22
Kentucky Senate (D): Conway 46, Mongiardo 44, Other 10
Kentucky Senate (R): Paul 51, Grayson 41, Other 8
As always, these are educated guesses pulled out of you-know-where. If I nail the election, I'm brilliant. If not, pretend you never saw this.
Your turn!
Update: Remember, Arkansas is a runoff state. So any candidate that doesn't win outright with 50 percent goes to a runoff in three weeks. I'm predicting both the Democratic and Republican Senate primaries will head to runoffs.