<p>In this photo taken May 2, 2012, Republican presidential candidate, former Massachusetts Gov. Mitt Romney speaks in Chantilly, Va. It's on. Independent groups favoring Mitt Romney are launching TV advertisements in competitive states, providing cover against President Barack Obama's well-heeled campaign. Romney advisers also are wooing wealthy patrons of former GOP rivals. It all underscores how federal court cases _ including Citizens United _ have paved the way fo…

May 3, 2012