Richard M. (Richard Milhous) Nixon

There are countless presidential scandals in U.S. history, but very few of them have resulted in resignation or impeachment — which is precisely why MSNBC host Rachel Maddow was drawn to the story of Spiro Agnew, Richard Nixon's first vice president, who resigned in 1973.

Maddow notes there are many misconceptions concerning the former vice president — including the notion that his "big sin" centered on taxes.

In 1971, Daniel Ellsberg leaked the Pentagon Papers to the press in hopes they would help end the Vietnam War. He looks back on his early days as a national security analyst in The Doomsday Machine.

Morgan Pehme co-directed the new Netflix documentary, Get Me Roger Stone, about the political operative who spent three decades trying to convince Donald Trump to run for president.

In his new book, New York Times journalist Tim Weiner paints a portrait of a president overwhelmed by wars at home and abroad, whose self-destructive behavior resulted in "political suicide."

In A.M. Homes' suburbia, yawning sinkholes will suddenly open up in front lawns, swallowing cliched plotlines and opening portals to other dimensions. In her latest novel, she serves up an old-fashioned American story that's more Norman Bates than Norman Rockwell.

Writer Mark Feldstein says muckraking columnist Jack Anderson cut ethical corners to get Nixon exposes, and the president responded with fury. He recounts surprising details of the long-running battle between the journalist and the politician in Poisoning the Press.

NPR senior news analyst Daniel Schorr died a week ago at the age of 93. School covered Watergate for CBS and broke many major stories, including a secret U.S. plot to assassinate Fidel Castro. Fresh Air remembers the legendary broadcast journalist with highlights from a 1994 interview.