Welcome to Trail Guide, your daily tour through the wilds of the 2016 presidential campaign. It's Tuesday, July 28, and this is what we're watching:
- 'Tis the season for trolling. Mike Huckabee isn't the only one trying to provoke his way into the headlines and onto the debate stage
- Liberals activists are pushing Hillary Rodham Clinton to promise to stop the revolving door on Wall Street
- Sen. Bernie Sanders has buzz, but how long can it last?
- Donald Trump's lawyer answers divorce questions with tirade, The Daily Beast reports
- Clinton is heading back to New Hampshire for a town hall
- Wisconsin Gov.