Exclusive: Exclusive: Senator Cory Booker reflects on his historic, record-setting speech

Senator Cory Booker talks with Rachel Maddow about holding the Senate floor for a record-breaking 25 hours and 4 minutes to raise attention to the perils of Donald Trump's agenda and inspire American activism against that agenda as many of his constituents have taken to regular public protests on their own. Want more of Rachel? Check out the "Rachel Maddow Presents" feed to listen to all of her chart-topping original podcasts.