The deal also sought to prevent the possibility of a plutonium bomb by rendering an existing reactor inoperable and prohibiting the construction of other heavy-water reactors for 15 years. Tehran also pledged to never produce weapons-grade plutonium.

“This disastrous deal gave this regime — and it’s a regime of great terror — many billions of dollars, some of it in actual cash.”

This is misleading.

Mr. Trump has made a version of this claim at least a dozen times since taking office, and he made it dozens of times while running for president.

The nuclear deal released about $100 billion — not $150 billion as he frequently claims — in previously frozen Iranian assets. In other words, the money already belonged to Iran and did not come out of the pockets of American taxpayers, as some of Mr. Trump’s supporters have erroneously inferred from the president’s claims.

Much of the amount is also tied up in debt obligations, and estimates for the actual amount available to Iran range from $35 billion to $65 billion.

And as The Times has previously reported, the cash payment Mr. Trump also mentioned refers to a separate matter:

The Obama administration did transfer $1.7 billion to Iran, but Mr. Trump’s statement requires more context. The money — delivered in cash, some on a plane — was payment for a decades-long dispute and was indirectly linked to the nuclear deal. Before the 1979 revolution, Iran’s shah had paid $400 million for American military goods but, after he was overthrown, they were never delivered. The clerics who seized control demanded the money back, but the United States refused. The additional $1.3 billion is interest accumulated over 35 years. An initial reimbursement was released after the Iran deal was implemented and to help secure the release of American hostages.

“Even if Iran fully complies, the regime can still be on the verge of a nuclear breakout in just a short period of time.”

This requires context.

“Breakout” refers to the time it would take Iran to produce enough fuel for one weapon, and the agreement increased that time to at least a year from an estimated two to three months.