Fain's campaign said he had a lead of 483 votes greater than the number of challenged votes remaining after ballot counting occurred earlier Saturday in a Detroit suburb. Court-appointed monitor Neil Barofsky did not immediately respond to a request for comment. Earlier this week, Fain was leading by 69,386 votes and Curry has 68,881 votes - a difference of 505 votes - but with 600 unresolved challenged ballots. The UAW and Curry did not immediately comment but earlier this month his campaign had filed a protest.

(Reporting by David Shepardson; Editing by Marguerita Choy)