President Donald Trump talks to reporters as he departs the White House in Washington, DC, on Friday for a trip to Asia. Allison Robbert/AP Kuala Lumpur, Malaysia —

US President Donald Trump will lean on the power of in-person diplomacy on the first Asia trip of his second term as he meets with old rivals, new friends and, potentially, adversaries, while looking to cut deals that could have sweeping economic and national security implications.

But Trump’s love of tariffs — just like his unpredictable approach to relationships abroad — has generated uncertainty among once-solid US allies in the region, setting up a major test of whether the “Art of the Deal” author can deliver.

Trump arrives in Malaysia late Saturday (Sunday morning local time) for a six-day, three-country tour af

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