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"The woman's husband was married to a man who worked in Ensign's Senate office." Clearly he started with either "The woman was married to a man who worked in Ensign's Senate office" or "The woman's husband worked in Ensign's Senate office", but he went back to change the wording and forgot to make the rest of the sentence agree.
I know you Koppelman-bashers try to nitpick everything he does, but calling this out only reflects badly upon you.