US President Joe Biden and former President Donald Trump have both claimed victory in their respective parties’ primary elections in Michigan. Trump secured a fifth straight win over his Republican rival/former colleague Nikki Haley of about 68% to her 28%, reinforcing his position as the favourite for the Republican nomination heading into Super Tuesday. And although Biden won about 81% of the Democratic votes, he has some big problems to deal with… Many Democrats in Michigan – which has the largest concentration of Arab Americans in the US – used the vote to express frustration over his handling of the Israel-Hamas conflict, with 12% of voters marking “uncommitted” on their ballot instead of Biden. That’s notable because Michigan is a swing state – in some presidential elections the Republicans have won, and in others, the Democrats. In 2020, Biden won with less than 3% of the vote, so he hasn’t got much wiggle room in November…