President Donald Trump of the United States celebrated the 100th day of his second term in office with a campaign-style speech, highlighting his achievements and targeting political enemies.

Welcoming what he called a "revolution of common sense," he told a crowd of supporters in Michigan that he is using his presidency to bring about "deep changes."

The Republican mocked his Democratic predecessor Joe Biden and directed new criticism at the head of the U.S. Federal Reserve, while dismissing polls showing that his own popularity is declining.