I don’t get many billion-dollar ideas. So when I do, I hope the people who count will take it seriously.

The idea is to save the United States Postal Service before it implodes and collapses of its own weight. I suggest that we radically reduce the USPS’ costs by cutting service to all of us. We could do that by a simple plan by which everyone with even-numbered ZIP codes would get their mail delivered on Mondays, Wednesdays, and Fridays. Those with odd-numbered ZIP codes would get service on Tuesdays, Thursdays, and Saturdays.

The United States on Monday expelled 60 Russian diplomats and ordered the closure of the Russian Consulate in Seattle amid the ongoing furor over the attack on an ex-spy earlier this month in Britain. Several European nations took similar measures to express displeasure over the Russian government’s alleged involvement in the incident. On March 4, British police found ex-Russian spy Sergei Skripal and his daughter Yulia unconscious on a public bench in Salisbury.

Teenagers who favor greater gun control and their supporters rallied in Washington, D.C., and other cities across the country Saturday. The March for Our Lives was organized in response to recent school shootings, including the Feb. 14 tragedy in Parkland, Fla., where 17 people died in an attack by a former student at Marjory Stoneman Douglas High School. Saturday’s protesters used the occasion to denounce the National Rifle Association and to call on Congress to enact tighter gun laws.

Earlier this month, a scandal broke out over pricey furniture at the Department of Housing and Urban Development (HUD). Ben Carson, a former neurosurgeon and presidential candidate, leads the government agency.

President Donald Trump made his official first visit to California on Tuesday to inspect models of his promised border wall. Peaceful protesters chanted, “No ban! No wall!” as Trump surveyed the San Ysidro port of entry in San Diego, the nation’s busiest border crossing. Officials briefed Trump on eight different wall prototypes. “If you didn’t have walls over here, you wouldn’t even have a country,” Trump said. The president’s trip comes during escalated tension between the liberal state and his administration.

WASHINGTON—Trump administration officials on Thursday told Idaho it couldn’t circumvent certain Obamacare requirements, including pre-existing condition exclusions and mandatory coverage for maternity care. The state planned to offer health plans that don’t meet the standards of the Affordable Care Act in order to save money.

Florida Gov. Rick Scott said Wednesday he intends to take his time debating whether to sign a gun control and school safety bill passed by the state legislature after days of wrenching debate. The bill would raise the minimum age to purchase a rifle from 18 to 21 and establish a waiting period before sales can be final. It also allows school districts to authorize employees, including teachers, to carry handguns on campus after going through a law enforcement training program.