Elevated Democratic enthusiasm amid opposition to the president's second term, reflected in primary turnout surges across multiple states and a consistent generic ballot advantage of roughly seven to nine points, anchors trader expectations for House turnout near or above recent midterm highs. With roughly one month until November 3 voting, forecasts project participation rates of 47-52 percent of the voting-eligible population, driven by motivated out-party voters, expanded mail and early voting access, and competitive districts that typically boost mobilization. Republican primary participation has lagged, raising questions about base engagement, though redistricting and targeted get-out-the-vote efforts could narrow gaps. The spread of probabilities across the 110-125 million vote range captures uncertainty over final mobilization effectiveness and any late shifts in voter sentiment before Election Day.