Rasmussen Reports: The numbers remain little changed this month in Pennsylvania’s race for the U.S. Senate, with Republican Pat Toomey continuing to maintain a slight lead over Democrat Joe Sestak.

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.

Click here for the complete report.