Santorum says Trump's threats to close border 'a bad idea'
![Santorum says Trump's threats to close border 'a bad idea'](https://thehill.com/sites/default/files/styles/promo/public/santorumrick_092517gn_lead.jpg?itok=vxatNOLR)
Conservative political commentator and former GOP Sen. Rick Santorum (Pa.) on Sunday said President Trump's threat to close the U.S.-Mexico border is a "bad idea."“I think the idea of closing the border is a bad idea. I understand why the...