As former President Donald Trump courts the community’s vote, comedian Tony Hinchcliffe crudely mocked Latinos — a key constituency for any winning campaign in 2024 — during preprogramming for the former president’s Madison Square Garden rally.

With nine days remaining until the election, Trump gathered scores of his most popular surrogates and allies to rally thousands in midtown Manhattan, a reliably deep-blue area.

Hinchcliffe, taking the first slot among nearly 30 warmup speakers,…