Several years ago, sociologist Brooke Harrington decided to explore the secret lives of billionaires. What she found, she said, shocked her.

15 days to go. This episode: host/campaign reporter Sam Sanders, White House correspondent Tamara Keith, and editor/correspondent Ron Elving. More coverage at nprpolitics.org. Email the show at [email protected].

Your questions, answered. This episode: host/campaign reporter Scott Detrow, political reporter Danielle Kurtzleben, and congressional correspondent Susan Davis. More coverage at nprpolitics.org. Email the show at [email protected].

How steep is Donald Trump's climb? This episode: host/campaign reporter Sam Sanders, White House corespondent Tamara Keith, campaign reporter Scott Detrow, and political editor Domenico Montanaro. More coverage at nprpolitics.org. Email the show at [email protected].

It's an unpleasant thought, but we're exposed to toxins every day. This episode, TED speakers ask: should we accept our toxic world as reality or can we make change?

The final debate of 2016. This episode: host/campaign reporter Sam Sanders, White House correspondent Tamara Keith, political reporter Danielle Kurtzleben, and political editor Domenico Montanaro. More coverage at nprpolitics.org Email the show at [email protected].

Where the race stands heading into Wednesday's third and final Presidential debate. This episode: host/campaign reporter Scott Detrow, congressional correspondent Susan Davis, and political editor Domenico Montanaro. More coverage at nprpolitics.org. Email the show at [email protected].

A century after women won the vote in the US, we still see very few of them in leadership roles. Researchers say women are trapped in a catch-22 known as "the double bind." Note: an early version of this episode incorrectly stated that Carol Moseley Braun was the first African-American U.S. Senator. She was in fact the first female African-American Senator.

Your questions, answered. This episode, host/campaign reporter Scott Detrow, political reporter Danielle Kurtzleben, and political editor Domenico Montanaro. More coverage at nprpolitics.org. Email the show at [email protected].

Love it or hate it, most of us have to work for a living. So, how can we make work more meaningful? This hour, TED speakers explore our values and motivations when it comes to the workplace. (Original broadcast date: October 10, 2015).