For instance in 2004 the christian conservatives put an issue on the ballot ammending the constitution to prevent gay marriage. This in turn had the conservatives show up in mass numbers to vote for the issue and at the same time Bush recieved more votes than he might have if that issue weren't on the ballot. Thus Bush recieves the Ohio electoral vote and wins the general election.
This is certainly true. But not just in Ohio. In 2004 eleven states had gay marriage bans on the ballot. They passed in all eleven states. G W Bush carried all but 2 of those states. Oregon and Michigan being the only exceptions.