Boston mayoral candidate Josh Kraft says the city’s growing payroll, boasting more than 500 employees who earned more than $300,000 last year, is the “latest example” that more fiscal responsibility is needed at City Hall.

Michelle Wu holds a double-digit lead over philanthropist Josh Kraft in the race for Boston mayor, a new poll from Emerson College finds. The preliminary election to narrow the field down to two candidates is in September. The poll asked more than 600 registered voters who they would vote for if the election were held today.

Boston Mayor Michelle Wu leads billionaire philanthropist Josh Kraft in the first poll of the city’s young mayoral campaign, but a decent share of voters remain up for grabs. Forty-three percent of respondents to the new Emerson College poll say they support the Democratic incumbent,

Boston Mayor Michelle Wu is kicking off her campaign for re-election with a strong lead over her opponent Josh Kraft, according to an Emerson College poll released Thursday.