HELENA, Mont. — A federal judge is considering a request by state attorneys to stay part of his ruling last week that invalidated campaign contribution limits approved by voters in 1994.

U.S. District Judge Charles Lovell peppered Montana Department of Justice lawyers with questions during a hearing Tuesday, but he did not make an immediate ruling.

Last week, Lovell ruled for the second time in four years that Montana’s campaign contribution limits are unconstitutional.

As a result, state officials reinstated contribution rules in place prior to the initiative. That means higher contribution limits for individuals and political action committees, but also that political parties can contribute unlimited amounts of money to campaigns.

State attorneys argue that lifting limits on parties could allow individuals and PACs to circumvent limits placed on them.