In 1993, he joined Lega Nord and was Deputy Mayor of Cittadella from 1994 to 2002. During his second term he joined Mayor Lucio Facco into Liga Veneta Repubblica. With the support of that party he ran for Mayor in 2002. Thanks to his personal appeal, his party won 14.9%, defeating Liga Veneta in one of its strongholds, and he was elected in the second round with 50.9% of the vote, also with the support of two regionalist citizen's lists.
In 2007, he was re-elected Mayor with the 56.5% of the vote in the first round. In that occasion he was supported by a regionalist front composed of Liga Veneta, Liga Fronte Veneto and some citizens' lists, which won altogether 51.7% of the vote.
In the 2008 general election, he was elected to the Italian Chamber of Deputies, where he sits in the parliamentary group of Lega Nord. Thanks to his popularity, he trailed the electoral result of the party in the Province of Padua, where Lega Nord passed from 7.7% to 24.1% in two years, and especially in Cittadella, where the party quadruplicated his score from 11.6% to 42.2%.