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.

Mayors of four of the largest cities in the U.S. appeared before lawmakers in the U.S. House of Representatives on Wednesday to defend their so-called "sanctuary city" laws, which restrict local officials in helping enforce federal immigration regulations.

A city council committee meeting scheduled for Monday is set center around Boston’s Trust Act — a policy that has been in the national spotlight amid Republican-led criticism of so-called sanctuary cities.

Fresh off the mayor’s defense of the city’s sanctuary policies and public safety record before a Congressional oversight committee, the Boston City Council held a community-based hearing where advocates pushed for expansion of the Trust Act.