Sen. Mark Kelly said he’ll support changing the Senate filibuster if Republicans block Democrat-backed election bills Wednesday night, erasing speculation about whether he might buck Democratic leadership on the controversial vote. “My year in the Senate has shown me how dysfunctional this place can be, and how that prevents progress on issues that matter to Arizonans,” Kelly, D-Ariz., who faces a difficult reelection this year, said. “We’re seeing that now, as voting rights legislation remains blocked while partisan politicians work to undermine Arizona’s successful vote-by-mail system and create more barriers to vote.”