AYMAN: Harris Faces Huge Test on Gaza at DNC

The emergence of Vice President Harris and the selection of Tim Walz as her running mate has breathed new life into the Democratic Party and injected supporters with excitement, hope, and even joy. But as the Democrats head to Chicago for the DNC, MSNBC's Ayman Mohyeldin addressed the huge test Harris now faces: how will she substantively shift policy on Israel and Palestine?