US tariffs: During his first year back in office, Trump introduced a series of “reciprocal tariffs” on multiple countries, prompting several nations to rush into negotiations with the US. Meanwhile, the recent court ruling and subsequent tariff revisions have created uncertainty. US tariffs: During his first year back in office, Trump introduced a series of “reciprocal tariffs” on multiple countries, prompting several nations to rush into negotiations with the US. Meanwhile, the recent court ruling and subsequent tariff revisions have created uncertainty.