The Wall Street Journal has a great overview of what is at stake today in Alaska.

Allies of Alaska Senator Lisa Murkowski are looking over their shoulders before Tuesday’s GOP primary. Internal polls taken for her campaign show Fairbanks attorney Joe Miller closing the gap. A new RT Nielson poll also has Ms. Murkowski’s lead down to 47% to 35%. If accurate, it shows Ms. Murkowski below the level of support where an incumbent can be considered safe.

Polling, however, in Alaska can be problematic and there is a troubling sign for Lisa Murkowski – with Palin, the Tea Party Express, and others on the ground driving up turn out, the higher the turn out the worse it is for her.The odds are in Murkowski’s favor today, but we shouldn’t count out Joe Miller just yet. This could be fun.