I just saw my first Trump sign yesterday in the Philly burbs. Looked like a GOP effort, on the side of a highway, including signs for Trump and Toomey. Maybe the first time ever seeing those two signs together. Northeastern PA is filled with Trump signs and signs for local reps, but they seem to be boycotting Toomey.
He has the initial, but not the heart, so his election is a matter of numbers in the R column, not necessarily for the R's.