President Donald Trump will host German Chancellor Angela Merkel, one of two European leaders heading to Washington as he mulls the fate of the nuclear deal with Iran.

Their April 27 meeting follows French President Emmanuel Macron’s stop in the U.S. capital.

The agreement’s future may depend on the success of last-minute European interventions with Trump. Macron and Merkel will likely be the last foreign leaders invested in the deal to see Trump before his deadline for the 2015 deal to be strengthened.

Trump’s pledged to withdraw by May 12 unless U.S., British, French and German negotiators can agree to fix what he sees as the deal’s serious flaws.

Iran has said a U.S. withdrawal and reimposed sanctions would destroy the pact, and has threatened to restart banned nuclear activities.

(AP)