Republican opponent . Nightline starts right now with byron pitts. Tonight, less than one week away from the 2020 Democratic National convention, the big announcement by joe biden. Putting past tensions aside to choose Kamala Harris as his running mate. Rachel scott is outside the senators home in d. C. Reporter the anticipation has been building for days, and tonight, frenzy outside Kamala Harris apartment, television crews, cameras, reporters, all camped out. We have seen this crowd grow hour after hour. So many of the voters i have spoken with here say they didnt support harris in the democratic primary and they didnt support biden either, but seeing the diversity was enough to stoke their hope in the election. Bidens barrierbreaking running mate. I am not perfect. Lord knows, i am not perfect. But i will always speak with ct senator Kamala Harris, the 55yearold stepmother and wife. The daughter of immigrants, a jamaican father and indian mother, who, as her Guiding Force growing up