title: Romney aims to stop Trump at Republican convention: CNN 
text: WASHINGTON (Reuters) - Republican 2012 presidential nominee Mitt Romney is aiming to block Donald Trump from winning the nomination for president at the party’s convention, CNN reported on Thursday, citing an unnamed source close to Romney. The goal is to lock him out of the convention, CNN said.  (Reporting by Timothy Ahmann; Editing by Mohammad Zargham) This article was funded in part by SAP. It was independently created by the Reuters editorial staff. SAP had no editorial involvement in its creation or production.