Several 2026 Senate contests remain within or near a 5-point margin according to recent polling averages, including toss-ups in Iowa, Nebraska, Texas, Ohio (special), and Alaska, plus lean races in Maine, Kansas, and Michigan. These seats are central to Senate control, with Democrats positioned to flip multiple Republican-held seats amid a national environment favoring their candidates in several battlegrounds. High campaign spending, particularly in Texas, and shifting voter turnout patterns in swing and red states have tightened projections. With Election Day on November 3, final polls, candidate debates, and any late developments in these states could still alter margins and determine which races resolve inside the threshold.