April 26, 2019: Reviewing The Week In Politics; One Man's Journey To Every National Park

We look back at the week in politics, including former Vice President Joe Biden's entry to the 2020 presidential race, and why the White House is defying congressional subpoenas. Also, in April 2016, Mikah Meyer set out on a journey to visit every National Park site — 419 in all. He's set to finish his single continuous trip on Monday. That and more, in hour one of Here & Now's April 26, 2019 full broadcast. You can read and hear more at hereandnow.org, follow us on Twitter and join the conversation on Facebook.