Mr. Trump’s economic victory lap came amid gathering legal clouds for the president. The special counsel in the Russia investigation, Robert S. Mueller III, is scrutinizing Mr. Trump’s Twitter posts for evidence that he obstructed justice; The Wall Street Journal reported that the chief financial officer of the Trump Organization, Allen Weisselberg, had been subpoenaed to testify in the investigation of Mr. Trump’s former lawyer, Michael D. Cohen.

It also came amid an invitation from President Vladimir V. Putin of Russia that he was ready to meet with Mr. Trump in Moscow or Washington. The White House said earlier this week that it would put off a meeting until the end of Mr. Mueller’s investigation, which it predicted would be sometime after the New Year.

The Russians had initially reacted coolly to Mr. Trump’s invitation that Mr. Putin come to Washington, suggesting that the two leaders could meet on the sidelines of a larger gathering of world leaders, like the Group of 20 meeting.

On Friday, Mr. Trump did not take questions about those or other issues in his appearance on a sun-drenched morning. Instead, he offered a long list of rosy statistics about jobs, trade deficits and the gross domestic product. He made no reference to the budget deficit, which has ballooned because of his tax cuts, though he promised during the campaign to eliminate it.

Mr. Trump referred to a visit he made Thursday to a steel mill in Granite City, Ill., where the plant’s owner, United States Steel Corporation, has begun firing up two blast furnaces after a lengthy shutdown. The company credited Mr. Trump’s tariffs on China and other steel exporters for leading it to put the plant back on line.