Under "Politics" on the ABC News home page one finds Election coverage as well as other relevant political coverage. Lists of candidates, videos, and more can be found here.
Fox has an "2016 Election" tab on its political page. Like many other sites it contains top stories, videos, blogs, a test to see which candidate matches your views, etc. The RSS feed is for general political news coverage but covers much of the debates, etc.
The RSS feed below is more general in its political coverage and does not necessarily focus on the elections but is currently rich with election coverage and quizzes.
Though there is much discussion of the elections on the main page, MSBC has an entire section labeled, "Decision 2016" devoted to election coverage. Here one will find election calendars, news about the candidates, related news coverage and more. The RSS feed below is devoted to general politics.
CNN devotes an entire section of its political coverage to a site called, "2016," devoted entirely to the election. The RSS feed is again for general politics but has much in the way of election coverage.