Newton Mayor Setti Warren announced to town employees on Thursday that he will not seek re-election in 2017.
Warren has been the mayor in Newton for the past seven years.
"This was a difficult decision for me, for I am incredibly grateful to have had the opportunity to lead the city where Tassy and I grew up and where we are raising our two children," he said. "I have loved being mayor of this great city."
The 46-year-old said he is making the announcement now to give the community time to select its next mayor. His current term runs through 2017.
"When I ran for mayor in 2009, I pledged to address the city's financial crisis, maintain the excellence of the school system, set Newton on track for long-term financial health, repair the city's crumbling roads and public buildings, and bring honesty, openness, and accountability to city government," Warren said in his email. "I'm so proud that together, we have accomplished these goals and so much more."
Warren, a Democrat, briefly ran for U.S. Senate in 2012 before dropping out. Fellow Democrat Elizabeth Warren was ultimately elected to the seat, defeating Republican Scott Brown.
Some have speculated that Warren might challenge Republican Charlie Baker for governor in 2018.