On September 2, a lower state court in New Orleans removed two Democrats from the November 2014 ballot for U.S. House, 2nd district. See this story. They were removed because they owe unpaid fines from the past to a state campaign finance agency.
The removal of these candidates clearly violates the U.S. Constitution. For almost one hundred years, courts have been telling states they cannot remove candidates for federal office from the ballot for qualifications that are not mentioned in Article One. The U.S. Supreme Court 1995 decision U.S. Term Limits v Thornton establishes that the long line of similar precedents from state courts and lower federal courts have always been correct. It is not known if either candidate will file a federal lawsuit to get back on the ballot. Thanks to Randall Hayes for the link.