Yesterday I wrote...

...that the Democratic Party should retain its majority in the United States Senate this year. I mentioned six incumbents, in particular, that Republicans need to beat in order to wrest control of the upper chamber:

Mark Begich, Alaska
Mark Pryor, Arkansas
Mark Udall, Colorado
Mary Landrieu, Louisiana
Jeanne Shaheen, New Hampshire
Kay Hagan, North Carolina

Let's start following the polls on each of these, shall we?

Today we'll look at the latest from Alaska, according to RealClearPolitics. As of May 13, Mark Begich, above, leads all three of his potential Republican opponents:

Begich 42, Dan Sullivan 37
Begich 41, Mead Treadwell 33
Begich 43, Joe Miller 27