An electronic billboard along Interstate 787 in Albany, New York urges state Senator Roy McDonald to support gay marriage.

McDonald, who voted against a gay marriage bill in 2009 as an assemblyman, now says he's on the fence. He's among the five Republicans who say they're rethinking their stance.

McDonald's district includes all of Rensselaer and parts of Saratoga counties and was previously represented by Joe Bruno. After retiring, Bruno publicly came out in support of allowing gay and lesbian couples to marry.

Restauranteur Matt Baumgartner, who owns Bombers Burrito Bar in Albany and Schenectady and Wolff's Biergarten in Albany, put up the sign estimated to cost $4,000.

“This is the biggest, most public political stance I've taken, but it's such an important issue and it's so timely,” Baumgartner, who is openly gay, told the Times Union.

“I certainly don't want to lose customers because of it, but I'm willing to take that risk,” he added. “The issue is too important.”

A spokesman for the 64-year-old Republican told The Business Review that McDonald remained undecided.

“Everyone wants a yes or no from him, but the undecided tag is where he's at right now,” said Mike Veitch.

Baumgartner has purchased the billboard through June 20, the last day of the legislative session.