DES MOINES — After contentious floor fights over a bill Democrats charged was intended to suppress voting and Republicans framed as protecting election integrity, an Iowa House committee chairman believes he can get bipartisan support for a measure that might modify some of those changes.“I acknowledged on the floor of the House during the election bill about a month ago that there are going to need to be some clarifications and some changes,” House State Government Chairman Bobby Kaufmann, R-Wilton, said Tuesday during discussion of Senate File 568.