He was a Member of the European Parliament from 2014 to 2018. He was the leader of the Congress of the New Right (KNP), which was formed in 2011 from Liberty and Lawfulness, which he led from its formation in 2009, and the Real Politics Union (UPR – "Unia Polityki Realnej"), which he led from 1990 to 1997 and from 1999 to 2003.