(AP) - President-elect Donald Trump says it's "very unfair" that some Americans across the U.S. have been protesting his being elected.



Trump took to Twitter last night as people unhappy with his triumph took to the streets for another night.



Some 4,000 protesters surged into downtown Portland, Oregon, and several people were arrested as police trying to push back the crowd had objects thrown at them.



There were also more demonstrations in New York, Chicago and other cities.