Iowa Gov. Terry Branstad last week made good on his promise to reject any one-year spending bills by vetoing a measure that provided about $350 million for transportation programs in fiscal 2012.
Branstad wants lawmakers to approve a biennial budget for financial planning purposes.
The move has generated both praise and criticism from lawmakers. Opponents believe two-year budgets are flawed because revenues can be difficult to predict further in time. Neighboring states that use two-year budgets include Minnesota, Nebraska, and Wisconsin.