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Donald Trump has knocked out all of his rivals for the Republican nomination, but you wouldn't know it by looking at his campaign schedule.

The real estate developer is setting out on his biggest campaign swing since becoming the de facto nominee – and he's still focused on primary states. New Mexico, California, Montana aren't exactly general election battlegrounds, but they're all places where Trump is going this week.

Blowing horns and chanting slogans, protesters gather outside a Caracas subway station. They plan to march to the National Electoral Council to demand that authorities hold a recall election.

But it's a sparse crowd. Shortly before the protest began, officials loyal to President Nicolás Maduro shut down subway stations in this part of the city. University student Daniel Barrios insists this was done to disrupt the march.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

Copyright 2016 NPR. To see more, visit http://www.npr.org/.

On a drizzly spring day in rural East Anglia, north of London, Will Dickinson ducks into his centuries-old farmhouse to file some paperwork.

"The wet day has driven me inside to the office — where I hate to be!" says Dickinson. His home, Cross Farm, in Hertfordshire, has been in operation since at least the year 1086, when it was listed in the Doomsday Book, a land survey of England and Wales written that year in medieval Latin.

Mosquito control is serious business in Harris County, Texas.

The county, which includes Houston, stretches across 1,777 square miles and is the third most populous county in the U.S. The area's warm, muggy climate and snaking system of bayous provide an ideal habitat for mosquitoes — and the diseases they carry.

The county began battling mosquitoes in earnest in 1965, after an outbreak of St. Louis encephalitis. Hundreds of people contracted the virus and 32 died.

In the Vietnamese capital of Hanoi on Tuesday, President Obama celebrated the dynamism of the fast-growing country.

He also met with dissidents and encouraged the government to improve its human rights record.

Like a growing number of American tourists, Obama seems to be enjoying himself in Vietnam.

The president snacked on noodles in Hanoi's Old Quarter Monday night but admits he didn't hazard a dash across the busy streets, buzzing with motorbikes.

At London's annual Chelsea Flower Show, the flora is fit for a queen: shaped in her likeness and crafted in honor of her 90th birthday. The new princess has her own chrysanthemum too.

But this year's event, which opens Tuesday, kicks off with a warning from the Royal Horticultural Society: Britain has a "lost generation of gardeners."

Khaled Ali Hassanin opens his silver minivan and pulls into Cairo's busy traffic. He is a freelance driver. He used to ferry foreign tourists all around Egypt as a staff member of a tour company. It was a great job.

"There was so much work. I never worried about money. If I spent one [Egyptian] pound, I'd get two back. We had more work than we could handle," he says.

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