Tuesday on the News Hour, leading Democrats at the DNC make the case for a Kamala Harris presidency while the candidate herself takes her message to voters in the swing state of Wisconsin. A rare look from on the ground in Sudan, where a brutal civil war has stolen people's food and livelihoods. Plus, a summer COVID surge highlights difficulties in keeping up with the ever-changing virus. PBS News is supported by - https://www.pbs.org/newshour/about/funders