Portland, Oregon, protest becomes riot, police say; THAAD is operational; change in visa counting procedure leads to difficulty finding workers; and more headlines to start your Tuesday, May 2, 2017.

Arrests made as thousands rally in US for and against Trump

SEATTLE Tens of thousands across the country peacefully chanted, picketed and protested Monday against President Donald Trump's immigration and labor policies on May Day, despite a small pocket of violent unrest in the Pacific Northwest.

Peaceful protesters flocked to the streets in Chicago. At the White House gates, they demanded "Donald Trump has got to go!"

But police shut down a protest in Portland, Oregon, that they said had become a riot, after marchers began throwing smoke bombs and other items at officers. Police said they made more than two dozen arrests as a group of anarchists wearing black bandanas and ski masks grew unruly, reportedly breaking windows at businesses, setting fires on downtown streets and damaging a police car.

Five people in Seattle were arrested, one for hurling a rock as pro- and anti-Trump demonstrators faced off.

With visas tight, US resorts struggle to find seasonal help

PROVIDENCE, R.I. Innkeepers, restaurateurs and landscapers around the U.S. say they are struggling to find seasonal help and turning down business in some cases because the government tightened up on visas for temporary foreign workers.

"There's going to be a lot of businesses that just can't function on a full-time basis, and some might not even open at all," said Mac Hay, who co-owns Mac's Seafood on Cape Cod and has organized seasonal businesses to lobby Congress.

At issue are H-2B temporary visas, which are issued for workers holding down seasonal, nonagricultural jobs.

The U.S. caps the number at 66,000 per fiscal year. Some workers return year after year, and Congress has let them do so in the past without being counted toward the limit. No such exception was passed for 2017 at the end of last year, after the presidential election.

Tony Award nominations to be released today

NEW YORK The question around this time in 2016 was just how many Tony nods the megahit "Hamilton" would earn. This season there's a glut of 13 musicals all vying for four best new musical slots (or five if voting is close).

The long-term fate of many shows now on Broadway often rests on how many nominations and later wins they can accumulate. Answers will become clearer after Christopher Jackson and Jane Krakowski announce the candidates Tuesday from 37 eligible shows.

This year, there are 24 competitive Tony categories. Winners will be determined by some 850 industry insiders. Kevin Spacey will host the awards show June 11 from Radio City Music Hall.

Seoul: THAAD can defend against North Korean missiles

SEOUL, South Korea A contentious U.S. anti-missile system in southeastern South Korea is now operating and can now defend against North Korean missiles, a South Korean official said Tuesday.

The Terminal High Altitude Defense system set up at a converted golf course in Seongju has "early capability" to respond to North Korea's nuclear and missile threat, Defense Ministry spokesman Moon Sang Gyun said. He didn't say when Washington and Seoul expected THAAD to be operating fully.

The deployment has triggered anger from Seongju residents who fear North Korea may target their town and who worry about rumored health hazards linked to THAAD's powerful radar.