WASHINGTON -- A meeting between Sen. Elizabeth Warren (D-Mass.) and Jamie Dimon deteriorated almost immediately after the JPMorgan Chase & Co. CEO visited the recently re-elected senator and consumer advocate at her Capitol Hill office in 2013. In a new afterword for the release of the paperback version of her book A Fighting Chance, Warren recalls that the tenor of the conversation between the two policy adversaries soured when Dimon complained about financial regulations that she has supported: When the conversation turned to financial regulation and Dimon began complaining about all the burdensome rules his bank had to follow, I finally interrupted.