PARIS  - French President Nicolas Sarkozy and his far-right election rival Marine Le Pen traded blows on Tuesday over claims that all meat in the Paris region is prepared using Islamic halal methods. Le Pen, trailing both Sarkozy and Socialist frontrunner Francois Hollande ahead of the April-May vote, made the claim at a rally on Saturday and pledged to file a legal complaint for “misrepresentation of products”. Campaigning on Tuesday in Rungis, home of the main wholesale food market serving the Paris metropolitan area, Sarkozy accused National Front leader Le Pen of getting her facts wrong.