Flanked by a bevy of suburban mayors, Mayor Rahm Emanuel called Tuesday for the General Assembly to pass a capital bill — and fund those infrastructure projects with a gas tax hike of at least 20 cents and as much as 30 cents. Former Ald. Dick Simpson is set to unveil his latest report on the City Council’s support of Emanuel’s initiatives. On the campaign trail, mayoral candidate Amara Enyia announced the endorsement of former journalist Charles Thomas.