That’s how a major German news magazine labeled these two (in German, Loser is also used for the plural form).
In his memoirs, Biden bluntly describes his disappointment with the German chancellor, who in his opinion was far too lax with Putin. In the book “Promise Me, Dad,” he mocks Merkel’s “passive voice” while at the same time praising his own speech as his having been his best ever. A meeting on the margins of the event with Merkel and the Ukrainian president apparently wasn’t particularly harmonious, either. “Merkel seemed frustrated with me,” Biden wrote of the meeting.