Vorauswahl
A poll taken on August 3, 2006, indicated that Johnson was leading McKinney heading into the final weekend before the runoff election. The poll of 300 eligible voters found that Johnson's support was at 52 percent and McKinney's support was at 39 percent, the first time that a poll placed Johnson above the 50 percent level. The poll only had nine percent undecideds. Early voting in the Fourth Congressional District was high.