The second round of Democratic debates for the 2020 U.S. presidential election are underway in Detroit.<br />Twenty of the 25 candidates in the running to try and unseat President Trump from the White House are debating over two nights on CNN.<br />Bernie Sanders and Elizabeth Warren are the highest polling candidates onstage right now.<br />Some of the key issues up for debate are immigration and health care since the candidates have different stances over how single-payer health care should be implemented in the U.S.<br />They're also attacking President Trump's leadership and his fitness to be leader of the free world.<br />
