Iran is upping the ante in its bid to escape the Trump administration’s harsh sanctions. The correct response is to hit Tehran even harder.

On Monday, the International Atomic Energy Agency confirmed that Iran is now enriching uranium past the 3.67% limit set by the 2015 nuclear deal. It’s already gotten some stocks to the 4.5% level.

Meanwhile, Tehran is threatening to seize a British ship because UK authorities impounded an Iranian vessel that was trying to break the oil embargo of Syria.

This follows Tehran’s announcement last week of another violation, namely accumulating over 600 pounds of enriched uranium.

Deputy Foreign Minister Abbas Araghchi said Sunday that Iran would cross another of the deal’s lines in 60 days, saying, “This is an opportunity for talks. And if our partners fail to use this opportunity, they should not doubt our determination to leave the deal.”

It’s not good news, but keep in mind that the nuclear deal gave Iran the right to cross all these lines in a few more years, anyway: It could prosper, sanctions-free, while it waited for the limits to expire.

Even though Iran’s nuclear and missile programs were already in violation of Tehran’s past international commitments when Team Obama agreed to the deal.

In theory, Tehran’s violations should oblige European nations to reimpose the sanctions they set aside under the deal. It was the pain of sanctions that brought Tehran to the negotiating table in the first place.

In the end, Team Obama let Iran escape that pain by merely delaying its entry into the nuclear club — a deal President Trump rightly said isn’t remotely good enough before he started restoring sanctions.

It’s going to take more pain to get the regime to agree to a deal that keeps nukes out of its hands permanently.