“Reverend Dr. Martin Luther King Jr.’s legacy of service always inspires me,” Obama wrote on Instagram. “This #MLKDay, I hope you’ll join me and @WhenWeAllVote in honoring Dr. King’s life and legacy by getting involved in your community.”

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.