By Doina Chiacu, Nathan Layne and Jeff Mason WASHINGTON/WEST PALM BEACH, Florida (Reuters) -U.S. President Donald Trump on Sunday bore down on his administration's latest message that the exclusion of smartphones and computers from his reciprocal tariffs on China will be short-lived,

U.S. President Donald Trump on Sunday said he would be announcing the tariff rate on imported semiconductors over the next week, adding that there would be flexibility with some companies in the sector.

It's the latest tariff change by the Trump administration, which has made several U-turns in its massive plan to put tariffs in place on goods from most countries.