BOSTON (AP) — Lawyers for former Massachusetts Treasurer Tim Cahill and two former aides will ask a judge to throw out public corruption charges against them.

A hearing on their motion to dismiss the charges is scheduled Thursday afternoon in Suffolk Superior Court.

Cahill is accused of airing taxpayer-funded ads for the state lottery as a way of promoting his unsuccessful independent campaign for governor in 2010.

The treasurer oversees the lottery.

Cahill is charged with violating state ethics laws and procurement fraud.

He and his former aides have pleaded not guilty. Cahill has said he did nothing wrong.

Copyright 2012 The Associated Press.