The Bernie Sanders campaign is struggling to keep up with the demand for lawn signs in Massachusetts, according to State Director Paul Feeney.

Feeney, who has experience working on local campaigns, said he "has never seen anything like it" while working in politics. New signs are currently on back order from print shops and shipments carrying extra signs from New Hampshire are expected this week.

"We weren't sure we would have the volunteer resources at first," Feeney said. "Now we are meeting every metric, every goal. We have more and more volunteers walking through the door every day."

The Sanders campaign for the Democratic nomination currently has five Massachusetts offices including Charlestown, Worcester, Springfield, Lawrence and an office in New Bedford which just opened on Feb. 13.

Look for more news on the Massachusetts presidential primary in The MetroWest Daily News leading up to Super Tuesday on March 1. We'll have a longer feature analyzing the race on Sunday, Feb. 28.