Donald Trump must be serious about running for President if he's speaking at the Iowa Lincoln Day Dinner

OpenSecrets:
"Real estate mogul Donald Trump will speak at the Iowa Republican Party Lincoln Day Dinner on June 10 in Des Moines. The Des Monies Register reports that Iowa State GOP Chairman Matt Shrawn approached Trump during the annual Conservative Political Action Conference in Washington, D.C., and offered Trump a chance to speak at the Iowa gathering. By attending a high profile event, the billionaire television personality adds speculation to his 2012 plans."