Cass R. Sunstein, Columnist

One Easy-to-Draw Line on Impeachment: Inauguration Day

Conduct before Trump entered the White House should be off limits to the House of Representatives (with one exception).

The clock starts here.

Photographer: Chip Somodevilla/Getty Images
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Soon the House of Representatives will have to decide what, if any, alleged misconduct by President Donald Trump should go into formal articles of impeachment.

Some of those decisions will be hard.