“I think our attractiveness is geared towards the new population of Cambridge, the people who have moved in after rent control, the younger, more affluent, maybe first-time condo owners,” said Jeff J. Chase, the chair of the Cambridge Libertarian City Committee.

And across the famously Democratic state of Massachusetts, the Libertarian Party has been making gains: enrollment has increased more than fivefold in the last four years—from around 3,000 to about 16,500—according to Elias Israel, the party’s state chair.

“We are not only the fastest-growing party in the state, we are the only growing party in the state,” Israel says.

Israel says Libertarians have lately been winning office in liberal bastions.

“We have about 40 offices held by about 30 Libertarians across the state— including a selectman in Provincetown,” Israel says.