new york city police union and the home of that union's president. and as the department of justice steps in, how one republican senator is pretending school board harassment and intimidation aren't off the charts. >> does waiting to express one's view at a school board meeting harassment and intimidation? >> the death threat was you're going to get knifed, you [ bleep ]. you're going to get a [ bleep ] dead. >> when "all in" starts right now. good evening from new york. i'm chris hayes. the very loud minority of anti-covid vaccine extremists have been making their presence known across the country. they've been showing up at protests and school board meetings and unfortunately also in hospitals. even the blue states have their own contingents. here in new york city for example there have been these anti-covid vax protests. mostly not that well attended