Guest: Chris Potter; May Day!; Tupelo, Mississippi is a strange town; new ad attacking Bill Peduto, implying he's a racist / only cares about 14th Ward; Luke Ravenstahl's pathetic Facebook post ( that has since been taken down ); anti-UPMC flyers out in the mail; toddlers w/ guns; 97 degrees in Amarillo, TX yesterday, 30 degrees with snow today; Brookline candidate night; Go Pens!; Callers: Dave, Washington / Unknowns.