Trump, Clinton look to extend leads as five more states vote

By John Whitesides WASHINGTON (Reuters) - Republican Donald Trump and Democrat Hillary Clinton each look to strengthen their front-runner status when five states hold presidential nominating races on Saturday, as Trump tries to weather a barrage of blistering attacks from his party's establishment. Trump, the controversial New York billionaire who has opened a substantial lead in delegates over his presidential rivals, will be vying to rack up more wins in Republican contests in Kansas, Kentucky