At the start of February, Donald Trump looked well set for re-election. True, his personal ratings weren’t great and nor were his head-to-heads against both Biden and Sanders, the two Democrats who’d shared the lead in the race for their party’s nomination for the previous three months. Even so, the economy was roaring ahead with record job numbers, America was near-enough out of foreign wars, and the attempt to impeach him had not only failed but failed to land any serious blows. For all his personal pettiness and boorishness, he had a saleable case to put to the people. And he’s good at self-promotion.