The missile strike in Syria overshadowed his two-day meeting with China president Xi Jinping, who brought his wife to meet Trump and first lady Melania Trump at Mar-a-Lago. The leaders ended their first meeting just as the first missiles were launched.

“When I explained to him what we were doing, because of the gassing of children, he understood immediately,” Trump told me.

I asked about their summit, given some of the harsh things Trump has said about China.

“I was a little surprised, we had a great chemistry, not good, but great,” Trump said. “I liked him and he liked me a lot. That doesn’t mean we’re going to get along on trade or North Korea, but we had great chemistry.”

Their meeting included a priceless interlude in which Ivanka Trump and husband Jared Kushner brought their three children to meet China’s first couple. The oldest, Arabella, who turns 6 in July, is studying Mandarin and sang a Chinese song and recited Chinese poetry in honor of the guests.

What did President Xi make of that, I asked.

“He said she was speaking absolutely perfect Chinese, he couldn’t believe it,” the proud grandfather recalled. “He said, ‘She sounds like a 5-year-old girl from Beijing.’”

Ivanka posted a video of the performance and it is a huge sensation in China, making successful diplomacy in this case a Trump family affair.