Biden's choice for Labor Secretary: What Walsh would mean for workplace law.

Look for the U.S. Labor Department to lean heavily in favor of workers and unions if President Biden's nominee of Boston Mayor Marty Walsh is confirmed to become secretary of labor.

Walsh was a labor union official before he entered politics and is expected to lead a Labor Department focused heavily on employee rights, a dramatic shift from the DOL's pro-employer tilt during the Trump administration.

After being nominated in early January, Walsh said workers have "been under assault" for the last four years, with "attacks on their rights, their livelihoods and the unions that built the middle class ... Now we have the opportunity to put power back in the hands of working people all across this country."

In introducing Walsh, Biden tipped several initiatives the DOL would...