Sonny Perdue and Jack Kingston will have a runoff in Georgia 's GOP Senate primary . In Oregon , Governor Jeff Merkley , Dr. Monica Wehby face Democratic , GOP Senate primaries . Idaho : Several states hold primary elections Tuesday . Republican incumbent Mitch Daniels faces Democrat Alison Scott Grimes .
Sonny Perdue and Jack Kingston will have a runoff in Georgia 's GOP Senate primary . In Oregon , Governor Jeff Merkley , Dr. Monica Wehby face Democratic , GOP Senate primaries . Several states hold primary elections Tuesday . Republican incumbent Mitch Daniels faces Democrat Alison Scott Grimes .