Thousands converged in Columbus, Ohio, Wednesday to deliver signatures aimed at repealing the state’s new collective bargaining law. Nearly 1.3 million signatures were delivered to Ohio’s secretary of state — far more than the 230,000 required to get the referendum on Ohio’s November ballot. If added, the referendum would invalidate Senate Bill 5, which bans public employee strikes and restricts collective bargaining rights for more than 350,000 teachers, police officers, state employees and others. The bill also eliminates the rights of unions to bargain on healthcare, sick time or pension benefits.