The Labor Party – Laborists (Istalian: Partito Operaio – Laburisti, PO), is a social-democratic party in Istalia. Since its formation in January 3800, Labor has been led by Matteo Fontana. The party was launched in late 3799 by Fontana, a prominent labor union leader from the region of Silicia. The party traces its roots to the pragmatic party called Populars for Istalia, as well as from the grassroots labor movement and a wide spectrum of progressive political parties and movements. The PO was formally established in January 3800.