Lawmakers question whether Ryan Zinke illegally mixed politics with official government travel

Interior Secretary Ryan Zinke’s visit to a small town south of Pittsburgh, Pennsylvania, less than three weeks before a special election, is drawing scrutiny to determine whether the official trip was really an opportunity to throw his support behind the Republican hoping to fill the open congressional seat.

Several politicians were on hand for the February event in East Bethlehem, Pennsylvania, reportedly organized to announce how much funding Pennsylvania will receive in abandoned...