From the Document: "Since the end of the Second World War, successive U.S. Administrations and many Members of Congress have supported a close U.S. partnership with Europe. [...] President Trump and some in his Administration have questioned the fundamental tenets of the post-World War II transatlantic security and economic architecture to an unprecedented extent. President Trump's criticisms of NATO, the EU, and some key European countries have prompted concerns about the trajectory of transatlantic relations. The Administration contends that it is committed to NATO and supports close U.S.-European ties, but some Europeans question whether the United States will remain a reliable, credible partner. Policy divergences on a wide range of regional and global issues also pose challenges to U.S.-European relations. The 116th Congress may wish to consider the implications of Trump Administration policies for U.S. interests in Europe and U.S.-European cooperation."
CRS In Focus, IF11094
Congressional Research Service: https://crsreports.congress.gov/