The latest Rasmussen Reports poll on the Pa Senate race has Pat Toomey maintaining a lead, and thus the pollster is moving the race into "lean Republican" category:

The latest Rasmussen Reports telephone survey of Likely Voters in the state shows Toomey with 45% support, while Sestak earns 38% of the vote. Six percent (6%) prefer some other candidate in the race, and 12% are undecided.

Last month, Toomey held a near-identical 45% to 39% lead.

In fact, except for a brief surge after his mid-May victory over incumbent Arlen Specter in the state’s Democratic Senate Primary, support for Sestak has remained in the 36% to 40% range in matchups with Toomey back to February. In those same surveys, Toomey has received 42% to 47% of the vote.

With this latest result, the race is shifting from Toss-Up to Leans Republican in the Rasmussen Reports Balance of Power rankings,

Findings in Pennsylvania mirror the political mood found in much of the country, with voters pessimistic about the economy and critical of government actions like the new national health care bill and the federal legal challenge of Arizona’s immigration law.

The July 14 telephone survey was of 750 likely voters with a +/-4 % MoE.