A new study looks at the recommended amount of daily exercise for adolescents — and how few are getting it.

Sen. Kirsten Gillibrand spoke with Morning Edition about Democrats' priorities, from lowering costs to ending the Iran war. But questions remain about how they'll deliver.

A federal panel will meet to consider the arch for final approval on Thursday, and the government said it may begin construction later that same day. Critics hope a judge will intervene last-minute.