Prosecutors and defense attorneys are getting ready to make their final arguments to the jury in the corruption trial of former Massachusetts Treasurer Tim Cahill.

Closing arguments are scheduled today Tuesday, December 4th in Suffolk Superior Court.

Cahill, who oversaw the state lottery as treasurer, is charged with scheming to run $1.5 million in taxpayer-funded ads to boost his faltering 2010 gubernatorial campaign.

On the witness stand testifying in his own defense, Cahill said he approved the advertising blitz because he wanted to defend the lottery after the Republican Governors Association ran a series of ads attacking Cahill and his management of the lottery.

Prosecutors introduced a series of emails and text messages that showed Cahill's campaign staff had contact with the advertising firm that worked on the lottery ads.