While the main intrigue in American politics until mid-2023 was whether Donald Trump would be imprisoned before Election Day, the most important question now is whether the Democratic Party will split into those who support Joe Biden’s re-election bid and those who will demand that the US president give way to a new candidate. An interesting paradox: serious difficulties with unity within the Democratic camp have opened a window of opportunity for Trump’s opponents in the Republican Party. For if the “donkeys” (and this animal is the symbol of the Democratic Party) nominate a successful govern…