Dan Baer on Foreign Policy

Served as US ambassador to OSCE & multilateral organizations

The clip boasts shots of Baer with Obama-era figures such as Hillary Clinton and John Kerry that date from the period when he served as deputy assistant secretary of state and U.S. ambassador to the Organization for Security and Co-operation in Europe. But arguably more memorable is footage of him driving for Lyft, which he says he does on occasion as a way of meeting and learning about a wider range of people than the typical candidate encounters.

Baer served as a fellow at Harvard's Edmond J. Safra Foundation Center for Ethics before joining the Obama team in 2009 and sticking around for more than seven years.

"At first, I worked on human rights from Washington and many places around the world," he recalls. "I covered Latin America, Africa, Asia and Europe, as well as multi-lateral organizations."