Welcome to Trail Guide, your daily tour through the peaks and valleys of the 2016 presidential campaign. It's Wednesday, July 22, and here's what we're watching:
- Former Florida Gov. Jeb Bush is touring a pregnancy center in South Carolina
- Former Secretary of State Hillary Rodham Clinton is slamming Republicans on 'family issues'
- Sen. Ted Cruz wants Americans to vote on their Supreme Court justices
- A new poll finds voters disapprove of the Obama administration's nuclear deal with Iran
- Republicans are hoping to use Uber to drive a wedge between Democrats
- Sen.