President Trump returned to familiar rhetorical territory during a raucous campaign-style rally in Iowa on Wednesday night, repeating exaggerations and falsehoods about health care, jobs, taxes, foreign policy and his own record.

Here’s an assessment.

He falsely said insurance companies “have all fled the state of Iowa.”

This talking point is no longer true. Medica, the state’s last company in the individual health insurance market, threatened to pull out in early May. Then it said earlier this month that it would stay in the state but that it would charge much higher premiums. And the Trump administration itself may be responsible for part of the uncertainty and volatility by suggesting it may not fund cost-sharing subsidies, as the company’s chief executive suggested to CNBC.

He exaggerated his legislative accomplishments.

Mr. Trump has signed nearly 40 bills into law, but it’s hard to argue, as he did, that any were “really big.”

The 14 bills rolling back Obama-era rules did signal a significant shift in regulatory policy, but are not considered major pieces of legislation. Three others named federal buildings, four made symbolic gestures toward women and veterans, three appointed Smithsonian Institution regents, two set minor rules for federal employees, one affirmed NASA’s mission, one improved weather forecasting, and one aided Minnesota’s bid for a world’s fair in 2023.