Rep. Liz Cheney does not mince words, but when it comes to her own political ambitions, the Wyoming Republican has nothing to say right now.

"I don't have any announcements to make about that," a tight-lipped Cheney told reporters at a recent press conference dominated by questions about her political future.

The U.S. Postal Service is experimenting with self-driving trucks to move mail across state lines.

The USPS has partnered with San Diego-based TuSimple on a two-week pilot program, focusing solely on a 1,000-mile route between Dallas and Phoenix.

Rashema Melson was among the more than 1,750 undergraduates who received diplomas from Georgetown University last weekend.

Before she attended college on a full scholarship, Melson graduated at the top of her class as the valedictorian of Anacostia High School in Washington, D.C.

She was also living with her mother and brothers at D.C. General, a family homeless shelter that shut down last year.

Taylor Walker is wiping down tables after the lunch rush at the Bunkhouse Bar and Grill in remote Arthur, Nebraska, a tiny dot of a town ringed by cattle ranches.

The 25-year-old has her young son in tow, and she is expecting another baby in August.

"I was just having some terrible pain with this pregnancy and I couldn't get in with my doctor," she says.