Career
He is the current mayor of District II of Budapest. He was the party"s candidate at the District II of Budapest by-election in November 2011. He came first with 58.45 percent before Katalin Lévai (Magyar Szocialiste Munkaspart (Hungarian Socialist Workers' Party)) and Gergely Karácsony (LMP).
After that Láng represented the 2nd district in the National Assembly of Hungary.