DENVER (AP) — Javier Guillen just wanted to get to the United States as he endured a three-month trek from Venezuela, hiking through Central American jungles and spending four days clinging to the roof of a Mexican train known as “the beast” to avoid police and kidnappers. But when he finally arrived in El Paso, Texas, last week, the 32-year-old settled on a new destination, only one relatively cheap bus ride away — Denver, an additional 680 miles (1,094 kilometers) north from the border. Over the past month, nearly 4,000 immigrants, almost all Venezuelans, have arrived unannounced in icy Denver,...