Wanggaard has the endorsement of everybody who actually matters in conservative establishment. While he has the name recognition of an incumbent, he also carries the baggage of being someone seen to have waffled on big conservative issues like union busting and school vouchers.
Van is SO Eric Cantor.
Jonathan Steitz has laid his groundwork to the right of Van, and has hammered him everyday for being a rubber-stamp and not a true conservative.
Via Is Van Wanggaard About To Get “Cantorized”? @ Root River Siren.