Now Playing: Meet the ‘Black Lives Matter’ activist who’s bringing a new message to the streets Now Playing ‘Black Panther’ star says he will not leave the theater until the police stop using tear gas Now Playing Why the NFL needs to take action on racial inequality Now Playing Watch: President Trump says ‘the media is not the enemy’ Now Playing Trump’s new chief strategist says ‘a lot of people are tired of hearing about it’ Now Play ‘Biden’ to introduce new ‘super PAC’ to fight Trump Now Playing How Trump’s daughter Ivanka became the face of his presidential campaign Now Playing What you need to know about the opioid crisis Now Playing Former Obama adviser calls Trump ‘the greatest abuser of power’ in history Now Playing President Trump is defending his response to the wildfires Now Playing The most powerful people in the Trump White House are not on the campaign trail anymore Now Playing CNN host calls on FBI Director James Comey to testify about his role in the Clinton email scandal Now Playing Hillary Clinton says her campaign ‘wouldn’t have been in the White House if not for the efforts of my husband’ Now Casting: ‘The Walking Dead’ actor Scott Wilson on the state of ‘The Good Wife’ and why he’s not going to ‘go anywhere’ Now More: Donald Trump Jr. tells ABC News he’s ‘not in the mood to go on TV’ Now: Trump’s wife, Melania Trump, leaves a meeting at Trump Tower after she was asked if she would run for president again

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