International security, global trade, and the Iran nuclear deal - all part of the agenda for a quick White House visit by Germany's Chancellor. Just days after a state visit by France's president, Angela Merkel spent less than three hours with President Trump. CGTN's Roee Ruttenberg reports.

German Chancellor Angela Merkel is a seasoned politician. She knows what she wants. On Friday, it was to convince Donald Trump to STAY IN the Iran nuclear deal. The U.S. President insists the agreement - signed under his predecessor, Barack Obama - is a bad deal.

DONALD TRUMP US PRESIDENT "The Iranian regime fuels violence, bloodshed, and chaos, all across the Middle East. We must ensure that this murderous regime does not even get close to a nuclear weapon. And that Iran ends its proliferation of dangerous missiles and its support for terrorism."

ANGELA MERKEL GERMAN CHANCELLOR "We are of the opinion the agreement with Iran is a first step that has contributed to slowing down their nuclear activities. It's also established a better verification and monitoring process."

Trump has said he might pull out of the deal next month when he's required - again - to certify Iranian compliance, a move that would surely anger Europe's longest-serving leader. Trump called her an "extraordinary woman." But then gave Merkel a dressing down over a host of issues, like the trade. He slammed Berlin for its surplus with Washington and said trade needed to be reciprocal.

Merkel suggested the imbalance could soon change, thanks to recent tax reform in Washington that once again made the U.S. an attractive place for German investment. But she warned that new U.S. tariffs on steel and aluminum - that go into effect May 1st - could jeopardize that, and should be delayed so that both sides could negotiate.

Trump also said Germany needed to spend more to fund the military alliance, NATO. Merkel said Germany's getting there.

ROEE RUTTENBERG WASHINGTON DC "Despite the smiles and friendly gestures - an obvious improvement from her last visit - Merkel's tough-talk and straight-to-business approach with Trump was a stark contrast to the French president's visit earlier this week. Emmanuel Macron and Trump tried to come across as best friends. Merkel made no such effort. Her trip was meant to seal the deal on divisive issues broached by Macron. Instead, his 'bromance' with the U.S. president may have overshadowed her 'romance'. Roee Ruttenberg, CGTN, in Washington."