A federal judge says he's very concerned about speed in handling an election lawsuit over rejected voter registration forms in Florida.

Labor groups are suing to have thousands of people declared eligible to vote, even if they failed to complete parts of their voter registration forms. Many applicants didn't check boxes about citizenship, mental status, or whether they are a convicted felon.

Federal Judge James Lawrence King says he doesn't want a repeat of the endless court battles in the 2000 Florida election. He's asking officials to find out how quickly they can assemble a list of rejected voters.

Elections officials initially said it might be impossible to add people to the list if the case drags out, but later conceded it might be possible to restore the names if the case is decided quickly.