Chicago Mayor Brandon Johnson signed an executive order instructing local authorities to refuse to collaborate with federal agents and immigration officers sent by President Trump to enact his immigration agenda. Rep. Shontel Brown (D-OH) joins Alex Witt to give her reaction to this stunning rebuke of the White House and discuss the latest happenings on Capitol Hill. Our next MSNBC Live event is on October 11th in New York City! Buy Tickets now: msnbc.com/live25 For more context and news