THIS EPISODE: Joe Biden’s vice presidential candidate pick Kamala Harris’ first interview on her historic role as the first woman of color on a major party ticket is analyzed by MSNBC contributor Errin Haines, who conducted that interview for The 19th, in conversation with host Tiffany Cross. AND: Sen. Kamala Harris as Joe Biden’s vice presidential candidate pick made history as the first woman of color on a major party ticket. Yet, Harris has also previously made history as the second black woman U.S. Senator. MSNBC’s Joy Reid, host of The ReidOut, joins Tiffany Cross to discuss what this means for the Trump era. PLUS: Post office cuts are tantamount to war against the American people, Rep. Ayanna Pressley says of the reported cut-backs at the USPS, which are apparently occurring in tandem with Donald Trump saying he does not want to provide the funding that would support mail-in voting. Rep. Pressley joins Tiffany Cross, calling for the postmaster general to resign. NEXT: Tiffany Cross assembles an all black male panel of experts to discuss outreach to this demographic, plus men of color in general, who are often ignored in the race to secure votes. All this and more in this Saturday edition of AM JOY on MSNBC.