This looks like a very reasonable poll, after digging through the cross-tabs and the partisan affiliations and other unrelated questions. Interestingly, it shows Portman with a huge lead (58% to 37%) over Strickland in the Ohio Senate race, and Rubio with a large lead (54% to 43%) over Murphy in the Florida Senate race.
Two polls today giving him a 5 point lead in Ohio. A good debate will cement the lead.