**William Lawrence (D) holds a 62.5% implied probability in the MI-07 House race against incumbent Tom Barrett (R) at 38.5%, reflecting trader consensus on a competitive swing district centered on Lansing.** The seat flipped Republican in 2024 when Barrett narrowly defeated Democrat Curtis Hertel by 3.7 points after Elissa Slotkin’s departure. Forecasters rate it a toss-up or lean Democratic heading into the November 3 general election. Lawrence, a progressive activist and Sunrise Movement co-founder, secured the Democratic nomination in the August 4 primary with roughly 43-44% against more moderate opponents. He has since gained DCCC Red to Blue support and focused campaigns on affordability, data centers, and constituent services. Barrett benefits from incumbency, strong fundraising, military and state legislative experience, and recent law-enforcement endorsements, while Republicans highlight Lawrence’s past progressive positions to appeal to the district’s moderate voters. Recent debates and town-hall contrasts have kept the contest tight, with polling showing narrow margins.