Making enemies

A man with a Putin mask and a rainbow flag attends a rally against the policy of U.S. President Donald Trump and Russian President Vladimir Putin in central Helsinki, Sunday. (AP Photo/Markus Schreiber)

Teppo Marttila, dressed as Uncle Sam, participates in the demonstration by the True Finns youth members in support of Donald Trump, in Helsinki, Finland on Sunday. (Martti Kainulainen/Lehtikuva via AP)

HELSINKI — President Donald Trump named the European Union as a top adversary of the United States and denounced the news media as the “enemy of the people” before arriving in Helsinki on Sunday on the eve of his high-stakes summit with Russia’s Vladimir Putin.