Good Tuesday morning. Here are some of the stories making news in Washington and politics today.

_____________________

• A day after forcing the resignation of Kirstjen Nielsen as secretary of the Department of Homeland Security, President Trump has accelerated a purge of the nation’s immigration and security leadership: At least five senior officials have been pushed out or are expected to leave.

• Ms. Nielsen is the latest in a long and growing line of senior officials who have left the administration unceremoniously.

• Temporary status is a seemingly permanent condition of the Trump administration. Mr. Trump has named a new “acting” secretary for homeland security, another in a series of interim appointments that avoid a confirmation fight with Congress.