News Analysis President Trump has harnessed agencies across the government to curtail press freedoms, a sweeping campaign that free speech advocates say will have lasting effects. The Justice Department has sent F. B.

I. agents to reporters' homes to serve subpoenas and, in at least one case, flashed a warrant to seize devices. The Pentagon has fired the editor and publisher of its traditionally independent newspaper, Stars and Stripes, and blocked access to other journalists who refused to sign pledges that would limit their reporting. Regulatory agencies are using their powers to pressure media organizations over their content.

The administration has stripped funding from public television and radio. Angry over stories he does not like, President Trump has sued major news organizations and the White House has taken control of the previously independent press pool that tracks the president, deciding which outlets can participate. Almost 20 months into Mr. Trump's second term, his long-running media clashes have grown into a sweeping campaign to control speech in America that stands out for applying so many levers, so fast, all at once.

Free speech advocates say the president's intent is apparent: to punish, intimidate and silence dissenters. "There's not a week that goes by where they're not taking a new step to curtail press freedom in the country," said Clayton Weimers, the executive director of the North America division of Reporters Without Borders. The United States now ranks at its lowest since the organization started the index in 2002 — 64th, just above Panama and just below Botswana.