We saw last night that Washington ties and incumbency is no benefit this year. But in another heated primary battle, a new Rasmussen poll in Arizona (500 LVs, 5/17, MoE +/- 4.5%) shows Sen. John McCain (R) building on his lead over former Rep. J.D. Hayworth.

Primary Election Matchup
McCain 52 (+5 vs. last poll, 4/13)
Hayworth 40 (-2)
Und 6 (-2)

McCain scores better than Hayworth across the board in terms of his fav/unfav rating. But his recent decision to shake up his campaign staff indicates he's not taking anything for granted with three months until the election.

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