Europeans' trust in the United States has plummeted since Donald Trump returned to the White House. Most Europeans also don't think the US would help if the continent were attacked.

Exclusive: poll across 15 countries finds ‘deep mistrust’, with majority doubting US would come to their aid in an attack

Growing numbers of Europeans no longer see the US as an ally, with a significant minority viewing the superpower as an adversary, a new survey has revealed.