King Charles steps into U.K.-Trump standoff just as new security concerns arise The Washington PostTrump says King will be ‘very safe’ during US visit after security talks BBCNow the King and Trump have something to talk about… the threats on their lives The IndependentTrump latest: President promises King will be ‘very safe’ in US after shooting Sky NewsKing Charles visits Trump: what are the potential pitfalls for the monarch? The Guardian