Dear Madam or Mr. President,
s you take up the extraordinary challenges before you, I hope you will nurture the partnerships that have sustained the United States through the years. When I became the European Union’s foreign-policy chief, I learned two lessons very quickly: first, that no matter how powerful any nation is, no significant issue can be solved alone. Climate change, pandemics, organized crime, and cyberattacks all require responses beyond borders. Opportunities for our citizens to travel, study, trade, and do business need deals with other countries that last decades or more. Working together with other like-minded nations is vital if we are to keep people secure, grow our economies, and tackle new challenges.
