Answer: D
Step-by-step explanation:
The detail that is included in the Washington Post article but not in Nixon's resignation speech is D. Nixon no longer has strong support in Congress.
Although Nixon did not explicitly mention losing support in Congress as a reason for his resignation in his speech, it was widely understood at the time that his support in Congress had diminished due to the Watergate scandal and the subsequent investigations and hearings. The Washington Post article likely referenced this as a contributing factor to his decision to resign.
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