Don't turn down WH invitation: Former Nats manager on Powerhouse Politics podcast

Former Washington Nationals manager Davey Johnson has a message to athletes.

“You are an American first,” he tells ABC News “Powerhouse Politics” podcast hosts Jonathan Karl and Rick Klein, “It shouldn’t be political.”

Games at Nationals Park in Washington, D.C., are often a "who's who" of the political world, including Supreme Court justices, leading Democratic and Republican congressional leaders and high-profile media figures. Johnson says when they come to the game, they put aside politics.

“You don’t think about politics you just think about baseball,” Johnson says about the unifying nature of professional baseball in the nation’s capital.

Johnson recounts his historic experiences with Major League Baseball, including leading the New York Mets to a World Series title in 1986 and taking the Nationals to the playoffs for the first time in 2012 in his new book: "My Wild Ride in Baseball and Beyond."

“It’s for a great cause,” Johnson says of his new book. saying the proceeds will be going to his wife, Susan Johnson’s nonprofit organization, Support Our Scholars.

Johnson hopes his book will give aspiring baseball managers inspiration and insight as to what goes on behind the scenes of major league baseball from a managerial perspective.

“I didn’t really believe in it because I believe the more you throw the stronger you’re going to be,” Johnson tells Karl and Klein, “it definitely hurt us. I thought we had a lot of momentum going on and we could go further.”

Editor's note: Anna Karl is the daughter of Jonathan Karl and, like her father, is a dedicated Nats fan.