DES MOINES -— Proposed changes to the state’s elections laws continue to advance at the Capitol, but lawmakers are not in agreement on some key elements.A package of changes, including closing the polls for statewide elections an hour earlier, was approved Wednesday by Republicans who control the Iowa Senate.But when the proposal heads across the rotunda to the Iowa House, which Republicans also control, lawmakers there said they have different ideas.The bill passed by the Senate — with all Republicans voted for and all Democrats against — would close the polls for statewide elections at 8 p.m.