HARTFORD, Conn. (AP) Former Connecticut Gov. John Rowland's lawyer has filed a brief with a federal appeals court saying Rowland's convictions in political consulting schemes should be overturned, including an allegation that prosecutors withheld evidence favorable to the defense.

Attorney Andrew Fish filed the document Tuesday with the 2nd U.S. Circuit Court of Appeals in New York City. Fish previously disclosed the appellate arguments in court earlier this year.

Rowland was sentenced in March to 2.5 years in prison after being convicted of charges including conspiring to hide payments for work he did on the failed 2012 5th Congressional District campaign of Lisa Wilson-Foley.

Fish says prosecutors failed tell the defense that Wilson-Foley said she believed Rowland was hired to do legitimate consulting work for her husband's health care company. Prosecutors deny withholding the information.