Mark Kelly, potential VP pick, plans to be in Arizona next week  POLITICOHarris to hold first rally with running mate Tuesday in Philadelphia  POLITICOKamala Harris to visit Wisconsin with new VP pick  WISN MilwaukeeKamala Harris to appear with running mate at rally in Philadelphia on Tuesday  The Guardian USMark Kelly as Democratic VP Pick Would Send Tough-on-Border Signal  The Wall Street Journal