Cllr Claire Jeffrey, who represents the East Folkestone Ward on Shepway District Council, has defected from Labour to the Conservatives.
Cllr Jeffrey, who is Jewish, said she could no longer represent a party which “tolerates anti-Semitism”.
Kent Online reports:
“She spoke out on Twitter about suffering abuse for more than two years and having been spat on and her children left terrified.”
Cllr Jeffrey said:
“Enough is enough. Goodbye Labour but I will continue to work hard as a councillor to serve the people of East Folkestone.”
Russell Tillson, secretary and treasurer of the Folkestone and Hythe Conservative Association, added:
“Cllr Claire Jeffrey has indeed paid her subscription and is now therefore a member of the Folkestone and Hythe Conservative Association.
“I have on all those occasions I have met her in the past found Claire to be a delightful and courteous lady.
“I have every expectation that she will bring to the Conservative party passion, energy, good sense and a deep commitment to the service of her local residents.
“She is also a woman of considerable integrity as it takes a lot of guts to leave a political party.”
Cllr Jeffrey stood as the Labour candidate for the Folkestone and Hythe at the General Election last year.