When Vice President Kamala Harris and former President Donald Trump step onto the debate stage in Philadelphia at 9 p.m. on Tuesday night, it will mark the first time the two politicians have ever met. The evening is set to present crucial tests for both candidates in a race that polls show to be in a statistical dead heat. [time-brightcove not-tgx=”true”] For Harris, the 90-minute debate will be the first chance for many voters to hear her lay out in detail her policy ideas and see how she performs under pressure.