Trump's success in the US primaries is a real treat for Putin. A possible re-election of Donald Trump would not only have consequences for the USA, NATO and Europe, but possibly also for US support in the Ukraine war.

Putin told Russian state media this month that he would prefer Joe Biden to win the US election in November despite poor polls because, unlike Trump, he is “predictable.” “I don’t believe for a second that Putin would actually choose Biden over Trump," says politics professor at Syracuse University, New York.