U.S. Rep. Tom Tiffany's position as the clear frontrunner in the Republican primary stems from his strong institutional support within the party, including the Wisconsin GOP's official endorsement at its state convention earlier this month. This move followed President Trump's earlier backing and aligned with endorsements from prominent figures such as former Gov. Tommy Thompson, which helped consolidate support and prompted other candidates to exit the race. With the August primary still months away, traders reflect this early coalescence around Tiffany's congressional record and policy focus on issues like taxes and energy. A late surge by a remaining contender or an unforeseen development ahead of the vote could still shift the outcome, though current consensus indicates limited room for such movement.