In Britain and the United States, there are signs that creeping Islamization has now accelerated to a gallop.

Until recently, America viewed the erosion of Western norms by Islam as a British and European problem from which America was largely immune. That is now far from the case.

Last week, the 34-year-old Democratic Socialist Zohran Mamdani, the New York state assemblyman who is the runaway favorite to become mayor of New York City in next month’s election, posted pictures of himself at Masjid At-Taqwa mosque in Brooklyn, N.Y., with its imam, Siraj Wahhaj, who he described as one of the nation’s foremost Muslim leaders.