Michelle Wu called on her top challenger Josh Kraft to release his tax returns to reveal any financial interests or business “entanglements” he may have with the city that could impede his ability

With the city’s preliminary election closing in, Boston Mayor Michelle Wu holds a nearly 30-point lead over her nearest challenger, according to a new poll. Wu leads philanthropist and community activist Josh Kraft 59%-29% in the new Boston Globe/Suffolk University poll out Monday.

Boston Mayor Michelle Wu is leading Josh Kraft by 30 points with about a month to go before the first ballots are cast in the city's preliminary election. The post Wu has comfortable lead over Kraft,