Rich Lowry: Whatever the exaggerations, the caravan is real

The last thing the left wants prior to the midterms is an image dramatizing the weakness of our southern border.So the caravan of thousands of migrants, emanating from Honduras and headed toward the United States, is considered an illegitimate story, a shoddy excuse for President Donald Trump’s fearmongering.It's certainly true that Trump and his allies have thrown up a lot of chaff around the caravan. It's not being paid for by George Soros, or infiltrated by unknown Middle Easterners. Bu