DES MOINES — Iowa lawmakers’ road to adjournment has rarely looked more uncertain.Normally, by April, legislators guiding the General Assembly toward its yearly session shutdown have a pretty good sense of what their state budget plan will look like and how they will accomplish most, if not all, of the priorities they set out when they started in January.But a session that seemed on track less than three weeks ago now looks anything but normal as a global coronavirus pandemic has arrived at the closed Iowa Capitol building — causing lawmakers to suspend their work until at least April 30, prompting Gov.