With the economy booming, Ernesto Martinez can barely keep up with all the construction work coming into the small drywall company he owns. He's part of a historic wave of Latino prosperity in America.

It wasn't always like this. Martinez remembers when he was 17. He had $120 to his name, and it was all in his pocket. It's how much he got paid for his first job in the U.S., as a mover. He says he stood there, mesmerized, in front of a shop window at the mall.

Martinez was looking at a pair of Air Jordans. They cost around $100.

Along one rugged stretch of the Rio Grande, U.S. citizens routinely cross the border into the United States illegally. A shortage of basic services in rural Texas, such as health care, means U.S. citizens rely on Mexican services and rarely pass through an official port of entry on return.

Informal, unregulated crossings have been a fixture of life for generations in rural communities along the U.S.-Mexico border. Today, however, with the unrelenting focus on border security, this kind of unfettered back-and-forth by U.S. citizens is rare.

The Democratic Congressional Campaign Committee said it's releasing digital ads criticizing Austin-area Congressman Chip Roy after the Republican single-handedly delayed a disaster aid package Friday.

The DCCC announced the ads "will reach thousands of voters in Texas’ 21st Congressional District on Facebook and Instagram."

When students who aren’t enrolled in a free school meal program lack the money to pay for their food, what results is an accumulating lunch debt. It’s a problem facing many schools across the country. About 75% of districts reported having unpaid student meal debt at the end of the 2016-17 school year, according to the School Nutrition Association.

From Texas Standard:

Americans pay some of the highest prices in the developed world for prescription medication: On average, each individual spends $1,200 per year. But now, some states are trying to change that. On Wednesday, Colorado Gov. Jared Polis signed into law a bill that would implement a price cap on insulin, the first law of its kind in the nation.

A fire that started in Mexico and jumped the Rio Grande soon after has ignited fires on the U.S. side of the river in Big Bend National Park, causing damage to historic buildings and forcing site closures throughout the southern pocket of the sprawling West Texas park.

Updated at 11:35 a.m. ET

Bernie Sanders and Joe Biden are very much on each other's minds.

At his campaign rally in Philadelphia on Saturday, the former vice president went off script — twice — to deride a protester with a whistle.

"That must be Bernie or somebody," Biden apparently said, raising eyebrows and drawing laughs.

(The line is at 8:21 into this video. You can decide for yourself what he said.)