Rick Santorum: I have 'concerns' about Rex Tillerson over climate change

Former Sen. Rick Santorum says he has "concerns" about ExxonMobil CEO Rex Tillerson, President-elect Donald Trump's pick for secretary of state, over the issue of climate change. Mr. Santorum said Mr. Tillerson was an "unorthodox" pick and that he'd withhold judgment until he found out more about him. "But there are some concerns I have about…