Good news for congressional candidate Scott Sipprelle: his consultants won the first two competitive House primaries in the nation. Jamestown Associates’ Ken Kurson was the consultant for Robert Dold, a businessman who won the GOP nod for Senate Mark Kirk’s open seat, and Joe Walsh, who will be challenging U.S. Rep. Melissa Bean. Both were underdogs in multi-candidate races and both prevailed despite being outspent. Sipprelle, a former Wall Streeter, faces Fair Haven Mayor Michael Halfacre for the GOP nod to take on U.S. Rep. Rush Holt.