A plumber, a Chief and an Uber driver walk into a Senate race. Can one win the GOP nod?

WASHINGTON – If you’ve turned on a television in the Kansas City area recently, you’ve probably seen Bob Hamilton’s face. He’s one of 11 names on Kansas Republicans’ Aug. 4 primary ballot for the race to succeed retiring GOP Sen. Pat Roberts. Hamilton is wagering that the onslaught of ads will elevate him above the two more established politicians in the field: Rep. Roger Marshall, who …