The son of longtime congressman Ray LaHood remained the overwhelming favorite Monday as the field took shape for the special election to replace disgraced former U.S. Rep. Aaron Schock in a heavily Republican central Illinois district that includes part of Springfield.

Darin LaHood, 46, of Peoria is a former state and federal prosecutor known in Illinois for his fiscally conservative views and focus on ethics reform. Ideologically, he's considered more conservative than his father, who held the seat before Schock and was transportation secretary for Democratic President Barack Obama.

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