Democratic presidential candidate Sen. Elizabeth Warren, D-Mass., talks to the media as she walks to the Senate chamber prior to the start of the impeachment trial of President Donald Trump at the U.S. Capitol, Thursday, Jan. 23, 2020, in Washington. DES MOINES, Iowa — Bernie Sanders and Elizabeth Warren have spent the past year courting the Democratic Party’s base with appeals to the working class and sweeping promises to curb climate change. But as […]