From left to right, U.S. Rep. Sean Casten, Burr Ridge Mayor Gary Grasso, U.S. Rep. Marie Newman and Rob Cruz discuss 2022 campaign issues at The Mecca Center in Willowbrook Friday. [Ben Szalinski/The Daily Line]

U.S. Reps. Marie Newman of LaGrange and Sean Casten of Downers Grove squared off in a Willowbrook forum Friday less than two months before the incumbent Democrats face off in the Democratic primary for who will represent the new 6th Congressional District.