Forget the happy talk of the mainstream media. The Democrats are a coalition of mutually antagonistic factions, united only by their hatred of President Donald Trump. They couldn't even keep a lid on the conflict between the dominant radicals and the pseudo-moderates propping up senescent Joe Biden as a putative centrist. Don’t look for the mainstream media to mention this, but the Biden campaign actually disavowed one of the speakers during last night’s Democratic National Convention internet TV show, Linda Sarsour and she is muttering about retaliation at the polls. Remember her? Sarsour, who has a history of controversial...