By Ward Clark Portable food carts are an accepted fact of life in many of our major cities, and even in some small towns. For years, in the Alaska town of Talkeetna, a regular fixture on that small touristy town's main drag was the halibut taco cart. The halibut were cooked using a propane tank under the cart — until the tank exploded, breaking windows and causing damage all up and down the street. Fortunately no one was seriously hurt. But it's a halibut taco you want now in Talkeetna, you're out of luck. Here's the thing: The Talkeetna halibut taco cart was legal. Now, back to the lower 48. Denver, Colorado, is a city that is beset with problems, not the least of which is Democrat governance. City officials piously pronounce Denver a "sanctuary" jurisdiction, and so their population of illegal aliens has grown almost continually for years now. Some of those illegal aliens, and to be fair, some in the city legally, have shown some enterprise. Denver's...