Broward County’s elections supervisor mixed 20 invalid ballots with a pile of 205 valid ballots, giving more fuel to Republicans who have alleged Democrats are trying to steal the U.S. Senate election from Gov. Rick Scott, R-Fla., who faces incumbent Sen. Bill Nelson.

The mistake was discovered after Broward County Supervisor of Elections Brenda Snipes agreed to turn over 205 provisional ballots to the county’s canvassing board for inspection, according to the Miami Herald.

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