Democratic officials say they contacted nearly 750,000 voters over the weekend . Republicans have contacted one million voters this weekend . The special election arose from a battle over collective bargaining rights for public employees . Republican Gov . Scott Walker faces off against Democrat Tom Barrett , Mayor of Milwaukee .
Democratic groups say they contacted nearly 750,000 voters over the weekend . Republicans have contacted 4 million voters this year . The recall fight stems from a battle over collective bargaining rights for public employees . Republican Gov . Scott Walker faces off against Democrat Tom Barrett , mayor of Milwaukee .