Mayoral candidate Josh Kraft took aim at his opponent, incumbent Michelle Wu, over the weekend, blasting her for spending over half a million dollars to prepare for her grilling by the House Oversight Committee in Washington last week.

Boston Mayor Michelle Wu testified before a House committee on so-called "sanctuary cities" in Washington Wednesday.

She stood up for the city and refused to cower in the face of threats and smears,” one of more than 1,700 respondents said. The post Mayor Michelle Wu represented Boston well at the ‘sanctuary cities’ congressional hearing,