So when Donald Trump used Palestinian as a slur against the president during last week’s debate, it was hard to know whether the insult was planned or just an ad-lib. “Look at a guy like Senator [Chuck] Schumer,” Trump said the day after the debate, referring to the Senate majority leader. During the debate, he warned that immigrants were “taking Black jobs now,” an argument premised on the idea that Black people do low-skill jobs and only low-skill jobs.