The dinner is one of the state party's largest events and typically serves as a showcase for Republican leaders, state chairman A.J. Spiker said.
Cruz has made frequent trips to Iowa, boosting speculation he may run for president in 2016, the Des Moines Register said Monday. It added Cruz will attend a Family Leader summit for evangelical Christians in Ames, Iowa, this weekend, and last month spoke to conservative pastors at an event in Des Moines.
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