A state judge refused Monday to dismiss a lawsuit that challenges the constitutionality of a pension plan for future state employees. The Retired State Employees Association of Louisiana filed suit in August, alleging the law establishing a 401(k)-type pension plan for future employees did not get a constitutionally required two-thirds vote in the 2012 legislative session. Gov. Bobby Jindal's administration had asked District Judge William Morvant to throw out the suit, claiming the association and individual plaintiffs did not have legal standing to file suit. Morvant disagreed at the conclusion of a hearing Monday and set a Jan. 24 trial date.