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U.S. Citizenship and Immigration Services

A top Trump administration official has been criticized for saying on Monday that the man charged with stabbing five people at a Hanukkah celebration in New York was the son of an "illegal alien" and came from a family that lacked "American values."

Ken Cuccinelli, the acting director of U.S. Citizenship and Immigration Services, made the comments in a now-deleted tweet about suspect Grafton Thomas.

The Trump administration is planning changes to the U.S. citizenship test. The U.S. Citizenship and Immigration Services says it is revising the test to ensure that "it continues to serve as an accurate measure of a naturalization applicant's civics knowledge."