COLORADO SPRINGS — Speaker Paul Ryan told a donor audience convened by the billionaire Koch brothers that they're in a fight to "retake the soul" of the Republican Party. "We have to do a better job of taking the moral high ground ... showing [conservative] ideas in practice," Ryan said on Monday. "And it will help us retake the soul of our own party, which we have our own challenges with these days." Ryan addressed a room of some 400 donors who have been gathered here since Saturday in a luxury resort at the foothills of the Rocky Mountains for...