Polish Prime Minister Donald Tusk, center, with his wife Malgorzata , right, and daughter Katarzyna cast their ballots during the parliamentary elections in Warsaw, Poland, Sunday, Oct. 9, 2011. Poles are voting to determine whether the centrist Civic Platform party will win another term after four years of strong economic growth. But Prime Minister Donald Tusk's party is facing a tough challenge from Law and Justice, the conservative party of Jaroslaw Kaczynski. (AP Photo/Alik Keplicz)