Donald Trump has had a few rocky weeks on the campaign trail, and it shows in the latest Fox News Poll. Just over half of Republicans would rather have someone besides Trump as their nominee, and his support in the presidential ballot test has dropped seven points since May. Democrat Hillary Clinton is up 44-38 percent over Trump in a head-to-head matchup. Earlier this month, Clinton had a three-point edge (42-39 percent). In May, Trump was up by three (45-42 percent). Clinton’s current lead is just inside the poll’s margin of sampling error. The national poll, released Wednesday, finds she...