From the USA Today:

Americans strongly oppose laws taking away the collective bargaining power of public employee unions, according to a new USA TODAY/Gallup Poll. The poll found 61% would oppose a law in their state similar to such a proposal in Wisconsin, compared with 33% who would favor such a law.

Based on the turnout at today’s anti-SB5 rally where we saw exactly ZERO people supporting the bill, I’d say the number might be even higher in Ohio.