The event is open to the the public, with no RSVPs needed, according to an email Hagman sent to constituents. Hagman's district includes Walnut and Diamond Bar. He terms out of office in 2014.
"I look forward to seeing you there," he wrote in the email. "It is a privilege to represent you in the State Assembly."
The gathering will be from 4 to 6 p.m. at his offices at The Shoppes of Chino Hills, 13920 City Center Drive #260.
Light refreshments will be provided
For more information, call Hagman's district office at 909-627-7021.