Donald Trump’s presidential run was long in the making, and planning for Republican campaign began soon after Barack Obama’s victory in 2012. Trump and a small team of confidants began planning his White House bid just weeks after Mitt Romney’s 2012 loss to President Barack Obama. The businessman trademarked his “Make America Great Again” slogan in November 2012, according to federal records. He spoke about the dangers of illegal immigration at the Conservative Action Political Conference in 2013, and campaigned in 2014 for Republican Rep. Steve King in Iowa, home of the first contest in the presidential nomination process. Between...