Good Wednesday morning. Here are some of the stories making news in Washington and politics today.

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• The Supreme Court’s conservative majority seems poised to allow the Trump administration to add a question on citizenship to the 2020 census. Adding the question, government experts said, could depress participation in the census (about 6.5 million people might not be counted) and affect how congressional seats are allocated. (Here’s a look at how it could alter the maps.)

• Robert Mueller’s report stopped short of declaring whether acts by President Trump were illegal attempts to impede the investigation. But his report is a detailed map to the answers.

• Is obstruction an impeachable offense? Mr. Trump tweets no. History says yes. Impeachment proceedings against Presidents Richard Nixon and Bill Clinton could provide a guide to House Democrats.