Just one white supremacist group — the Patriot Front — accounts for more than 290 incidents in Massachusetts this year, with the most occurring in Boston, Worcester, and Brockton. In September, reports emerged that two Massachusetts state legislators appeared on the membership lists of the extremist group the Oath Keepers, signaling the growing political influence of these groups as well. Evidence is also emerging of infiltration of our military and local police by white supremacists. Massachusetts was fourth on the 2021 list of states with hate group propaganda, according to a report by the Anti-Defamation League. Massachusetts leaders expressed surprise...