A debate over increasing Iowa's gas tax is looming at the Legislature. The Gazette in Cedar Rapids says lawmakers who see a need to raise revenue to fix the state's aging roads system predict there will be support for a phased increase of up to 10 cents a gallon. Sen. Tim Kapucian, a Keystone Republican, is the ranking member of the Senate Transportation Committee. He says the plan is loosely based on the recommendations of an advisory group, which proposed raising registration fees on new vehicles and establishing a new user fee for hybrid vehicles. Gov. Terry Branstad has said Iowa will generate enough revenue under the current plan to meet critical needs this year without a tax increase. Iowa's gas tax was last raised in 1989.