Monday marks not only President-elect Donald Trump's inauguration, but also Martin Luther King Jr. Day, the federal holiday honoring the late civil rights leader. Martin Luther King III, human rights activist and the son of Martin Luther King Jr.

The couple’s new podcast and book challenge the idea of legacy as an endpoint—instead, it’s a daily practice of action and change.

The dual celebrations of a second Trump inauguration and the civil rights leader’s birth raise profound questions about Black leadership and progress toward the Rev. Dr. Martin Luther King Jr.’s dream.