Senator Bernie Sanders was hospitalized in Las Vegas and treated for an artery blockage and is canceling his events for the coming days, a campaign official said on Wednesday.
Mr. Sanders is currently recovering at the hospital, a second campaign official said.
Jeff Weaver, a longtime adviser to Mr. Sanders, said in a statement: “During a campaign event yesterday evening, Senator Sanders experienced some chest discomfort. Following medical evaluation and testing he was found to have a blockage in one artery and two stents were successfully inserted. Senator Sanders is conversing and in good spirits. He will be resting up over the next few days. We are canceling his events and appearances until further notice, and we will continue to provide appropriate updates.”
Mr. Sanders, 78, was traveling for a gun forum in Las Vegas that other candidates were also scheduled to attend. He was to travel to California later this week.
Mr. Weaver read the statement to staffers on a quickly assembled conference call at 10:30 Eastern time, according to an aide on the call. No one on the staff asked questions following his statement, which the aide said Mr. Weaver read in measured tones.
One campaign aide, referring to Mr. Sanders, told The Times on Wednesday morning: “He feels better than ever because that’s how people feel after they get a stent and there’s more blood flow.”
Mr. Sanders has kept up a brutal schedule on the campaign trail, typically holding multiple events in several cities a day. Over the weekend, he held several events at colleges in New Hampshire. Following his trips this week to Nevada and California, he had been expected to travel to Iowa this weekend, according to a campaign aide.
The Sanders campaign had planned to go on air with his first television ads of the campaign this week in Iowa, announcing a two-week $1.3 million buy on Tuesday. An ad tracking service, Medium Buying, said on Wednesday that Mr. Sanders began canceling those ads. The reason for the cancellation was not immediately known. Even as late as Tuesday night, Faiz Shakir, Mr. Sanders’s campaign manager, was talking excitedly about the ad buy on a call with supporters.
This is a developing story and will be updated.
Shane Goldmacher contributed reporting.