DAVENPORT — Donald Trump didn’t say whether he’ll run for president when he spoke to Republicans in Davenport, but he told them how he’d tackle the nation’s problems if he were in charge. Trump attended the Scott County Republican Party’s Lincoln Club fundraiser on Thursday, touching on topics ranging from the U.S. economy to immigration policy to his own business success during his breakfast speech. The billionaire developer said he’d announce his decision on a presidential run in June or July.