A man has been charged after windows were smashed at the constituency office of Bishop Auckland MP Helen Goodman.
The Labour MP said she believed the incident on 6 April was linked to her views on Brexit. She voted to stay in the EU and backs a customs union.
Two windows at her office in Cockton Hill Road were smashed between 17:00 BST and 22:30.
Colin Dodds, 44, of Douthwaite Road, Bishop Auckland, has been charged with criminal damage, Durham Police said.
A force spokesman said he was due to appear at Newton Aycliffe Magistrates' Court on 2 May.
A second man, aged 50, was also arrested on suspicion of criminal damage has been released under investigation.