“The UK government is reportedly struggling to get US attention over steel tariffs.” https://www.thenational.scot/news/19779188.anne-marie-trevelyan-fails-get-us-steel-tariffs-removed/?ref=twtrec
“US commerce department worried by UK threat to trigger Article 16.” https://www.irishtimes.com/news/world/us/us-delays-deal-to-remove-trump-era-tariffs-on-uk-metals-over-brexit-concerns-1.4744387