Complex sentence: The Northern League which during Mani Pulite affair verbally attacked the Socialists of which most were under corruption accusations starts having constrasts with the new Socialsit Party of which its see the attept to re-create the old political parties which characterized the so called First Republic.
Split into simpler sentences: The Northern League has, during Mani Pulite affair, verbally attacked the Socialists of which most were under corruption accusations. This started having constrasts with the new Socialsit Party which attempted to re-create the old political parties which characterized the First Republic.