NEW ORLEANS AP – A Republican-backed challenge of federal campaign finance restrictions, centered on the 2008 campaign of a Louisiana congressman, has moved to a federal appeals court in New Orleans.

U.S. Rep. Ahn “Joseph” Cao Gow and Republican leaders filed the suit in 2008. At the heart of the complaint is the federal limit on what state and national parties can spend in coordinated efforts on behalf of a candidate – about $42,000 each. The state and national parties cannot consult with each other on money spent beyond that limit, a problem that state party leaders have said can lead to duplicative or contradictory messages.