Analyst singles out 'stuff of GOP nightmares' moment at boisterous Harris/Walz rally

Appearing on NBC's "Morning Joe" to explain why he labeled Vice President Kamala Harris' decision to select Gov. Tim Walz (D-MN) as her running mate as "comfort food" for the masses, Politico's Jonathan Martin noted a moment during the rowdy Philadelphia rally that should be keeping GOP campaign strategists up nights.

Speaking with co-hosts Mika Brzezinski and Joe Scarborough, Martin noted, "I wrote this morning, Joe, in my column, I thought the most captivating part of the evening is the...