LITTLE ROCK, Ark. (AP) — The Arkansas secretary of state's trip to Ghana on a U.S. Department of Agriculture trade mission is under scrutiny from an audit.

Deputy Legislative Auditor Jon Moore told the Arkansas Democrat-Gazette (http://bit.ly/2rdbFgE ) on Thursday that Mark Martin's trip in November 2015 to expand export opportunities might not have been within the scope of his office's duties.

According to Moore, the Arkansas constitution says the secretary's duties include overseeing election laws, registering businesses and keeping up the state Capitol grounds. Moore said the nearly $8,400...