In 1991, Weygand, then a state legislator, was offered a $2,000 bribe by then-Pawtucket Mayor Brian J. Sarault.

Weygand went to the Rhode Island State Police and the FBI and agreed to deal with the mayor and provide evidence of the bribe.

The evidence Weygand provided helped send the mayor, several other city officials and private vendors to prison.

Weygand did not seek re-election to the United States House of Representatives in 2000, opting to challenge Republican Senator Lincoln Chafee.

In 2013, Weygand stepped down from the administration to take a faculty position as the director of the University of Rhode Island MPA program.