(Photo by Ben Hasty/MediaNews Group/Reading Eagle via Getty Images) HARRISBURG, Pa. - With concerns rising in Pennsylvania that tens of thousands of mail-in ballots will be discarded in the presidential election over technicalities, officials in the presidential battleground told counties they aren't allowed to reject a ballot solely because an election official believes a signature doesn't match the one in the voter’s file.The new guidance from Pennsylvania’s Department of State — that state law does not allow counties to set aside mail-in ballots based on their signature analysis — prompted the League of Women Voters of Pennsylvania and the Urban League of Greater Pittsburgh to drop a lawsuit in federal court Monday.The groups had cited.