Federal Reserve Chair Kevin Warsh said there is still work to do on inflation. At the Fed's annual economic symposium in Jackson Hole, Wyoming, Warsh also said that although he is not committed to a rate hike, he is not ruling it out. Amna Nawaz discussed more with Nick Timiraos of The Wall Street Journal.

Americans continue to flock to the national parks, with more than 320 million visitors in the last year alone. But that broad appeal is facing new political pressures, from orders to revise exhibits to President Trump's construction projects. Amna Nawaz discussed the state of national parks with Tiernan Sittenfeld, the president and CEO of the National Parks Conservation Association.