Boosting Clinton, Democrats to flag Trump's 'dangerous' approach

By Amanda Becker and Luciana Lopez PHILADELPHIA (Reuters) - Barack Obama will highlight Hillary Clinton's judgment and toughness on Wednesday as he seeks to boost her campaign to be the first woman elected U.S. president, hoping to hand off the White House to a trusted fellow Democrat and stop Republican Donald Trump. On a day when Democrats meeting at their convention in Philadelphia planned to tout their candidate as far better suited than Trump to keep the country safe, the Republican gave hi