When will the world learn about the ‘Black Lives Matter’ movement?

Now Playing: ‘Black lives matter’ protesters storm Trump Tower Now Playing ‘Black and Brown’ stars join the protest march Now Playing Trump slams protesters who disrupted Trump rally Now Playing Woman arrested after smashing window of Donald Trump car Now Playing The U.S. says it’s considering military options in response to ‘Black Lives Matter’ protests Now Playing Obama’s speech on the Charlottesville protests Now Listening: Trump blames the ‘black lives’ movement for violent protests Now Looking for answers: The world’s first ever Black History Month Now Playing U.N. condemns ‘Black Lies’ movement Now Playing President Donald Trump defends ‘Black leaders’ in Charlottesville Now Playing World leaders condemn ‘Black lies’ in response of Charlottesville protestsNow Playing President Trump blames ‘black leaders’ for violence in CharlottesvilleNow Playing White House calls out ‘Black liars’ for their lies about the protests on ‘Black Friday’ Now Playing New video shows Trump criticising ‘black liars,’ calling them ‘bad liars.’

Now Playing A look at the events that led to Charlottesville’s deadly violenceNow Playing ‘The White House is saying it’s investigating the possible deaths of Heather Heyer and others,’ but it’s unclear if that includes the president’s own aidesNow Playing Alyssa Milano on the White House and Charlottesville: ‘It’s just a little weird’ Now Play ‘Black History Month’ event in the White Houses of the U.K., the U, France, Australia and New ZealandNow Playing Trump: ‘If you’re not a citizen, you don’t have a right to protest’Now Playing Protests erupt over the Confederate battle flag in Charlottesville, Va.

Now Playing The ‘Black News’ series on the 2016 presidential electionNow Playing CNN hosts to cover ‘Black news’ as Trump’s ‘Black Power’ speech comes to a closeNow Playing Video captures moment a protester was stabbed during the protest on SaturdayNow Playing US condemns ‘black lies’ and calls on allies to support ‘Black leadership’ in wake of Charlottesville demonstrationsNow Playing Former Trump campaign manager Corey Lewandowski charged with assaulting a journalistNow Playing Protesters clash with police at rally in Virginia