Judge Rules Tuesday Whether to Allow Gary Johnson on Iowa Ballot

Romney supporters appear to be trying to knock him off

A district court judge says he plans to rule Tuesday whether to block Libertarian presidential candidate Gary Johnson's listing on the Iowa ballot in November.

Attorneys for two voters who challenged Johnson's listing on the ballot filed documents Thursday in Polk County District Court in Des Moines asking Judge Arthur Gamble to review the decision of a panel of three state officials that allowed Johnson on the ballot.

Libertarians say they held a caucus at the Iowa State Fair to get Johnson, the former Republican governor of New Mexico, onto Iowa's ballot.