U.S. Senate candidate Peter Konetchy may not have submitted enough valid signatures to get on the Aug. 7 Michigan Republican primary ballot.
State elections officials tell the Board of State Canvassers that about 450 of the 15,130 nominating petition signatures Konetchy's campaign turned in three weeks ago appear to be invalid. That leaves him short of the 15,000 needed to make the ballot.
The board rules Wednesday on Konetchy's candidacy.
The Roscommon businessman said Monday that he knew he barely had enough signatures collected but says he may have made it on the ballot if no one had filed a challenge to his signatures.
Four Republicans remain running for the chance to challenge Democratic incumbent Debbie Stabenow in November. They are Pete Hoekstra, Clark Durant, Gary Glenn and Randall Hekman.