After Trump tweet, ethics office to U.S. employees: do not endorse products

"A day after President-elect Donald Trump encouraged supporters to "Buy L.L. Bean," a U.S. ethics watchdog on Friday warned federal employees they must not endorse products or companies.

The U.S. Office of Government Ethics (OGE) said on its official Twitter account: "All executive branch employees must refrain from misuse of position, including endorsements."

No mention of Trump was made in the tweet, and many rules for federal employees do not apply to the president. The ethics office has tweeted other reminders to employees this week, including one that federal gift restrictions remain in place during the upcoming inauguration.