Charleston, South Carolina CNN — At most only a few dozen ever come, but they’re following President Joe Biden almost everywhere. On Friday near Valley Forge, Pennsylvania – as the president was inside giving a searing speech warning that American democracy might collapse if he doesn’t beat Donald Trump – a group of pro-Palestinian protestors stood on a patch of grass outside ticking through rhyming chants like, “Hey hey, ho ho, genocide Joe has got to go!” On Monday at the Mother Emanuel AME Church in Charleston, South Carolina, Biden was in the middle of remembering the nine congregants gunned...