Sen. Cory Booker (D-N.J.) kicked off his 2020 presidential campaign in his hometown of Newark, New Jersey, Saturday with a pledge to fix the justice system and legalize marijuana.
Details: Booker said his administration would also look at closing the racial wealth gap and tackle climate change. He invoked the Rev. Martin Luther King Jr when he said the U.S. couldn't wait for social and economic reform. "We are here today to say, we can't wait," he said.