Mayor Michelle Wu spoke out against the Kraft Group's proposal for building a stadium in Everett to host the New England Revolutions, calling their mitigation offer to Boston an "unserious proposal" -- criticisms the Revolutions president and Everett mayor pushed back against.

Boston Mayor Michelle Wu openly criticized the Kraft Group for its handling of a proposed soccer stadium for the New England Revolution in Everett.

The city and the company run by Robert Kraft, billionaire owner of the New England Patriots and the Revolution, held dueling press conferences Monday. The Everett stadium project began looking more like a proxy fight in the mayoral battle between incumbent Michelle Wu and Kraft’s son Josh,