North Dakota Rep. Earl Pomeroy (D) is in tough shape, according to a new Rasmussen poll (June 15-16, 500 LV, MoE +/- 4.5%). Not only is he polling below 50% -- a clear sign of an incumbent's vulnerability -- but his Republican opponent, Rick Berg, has eclipsed the 50% mark for a second straight month. This is the fifth straight month Berg has led the race.

Berg 51 (-1 vs. last poll, May 21)
Pomeroy 44 (+1)
Und 5

RCP rates this race Leans Republican.

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