Legislative leaders gave a peek Tuesday at the fights coming to the Capitol, highlighted by a contentious proposal to reform laws around unionizing in the state, stabs at regulatory reform and efforts to patch a massive budget hole. Speaking on a panel hosted by the Denver Metro Chamber of Commerce ahead of the legislative session’s start Wednesday, the lawmakers emphasized a need to make Colorado more affordable while hinting at some of the ideas they’d pursue. Senate President James Coleman, a Denver Democrat, endorsed the idea of reexamining business regulations and incentive packages designed to lure companies to the state.