WASHINGTON—A Treasury Department official deeply involved in implementing the new tax law left the government unexpectedly this week. Dana Trier, a retired New York attorney praised by fellow tax lawyers in both parties, was a deputy assistant secretary for tax policy, putting him near the center of administration decision-making about how to write the crucial and highly technical rules stemming from the new Tax Cuts and Jobs Act.

Source: Wall Street Journal February 23, 2018 23:37 UTC