In the March edition of Civil Dialogue, two Assembly leaders -- Republican Rep. Robin Vos and Democratic Leader Peter Barca -- disagreed on why new mining regulatory regulations aimed to helping construction of the Gogebic Taconite open-pit mine in northern Wisconsin died in the Senate. The two leaders also fought over what the Legislature will achieve in its final days before adjourning and what recent polls suggest about whether Republican Gov. Scott Walker will survive a likely recall election this summer. The March 7 show was taped in the Assembly chamber.