PORTLAND, Ore. -- Bernie Sanders will make a visit to Portland next month.

The U.S. senator from Vermont and former Democratic candidate for president will be at Powell's Books on Dec. 1 at noon.

Sanders will be promoting his new book, "Our Revolution," which contains personal experiences from his primary campaign. The book also outlines a progressive agenda that will address economic, environmental, racial and social justice issues.

Tickets for the photo-op event, which went on sale Oct. 17, are already sold out.

During the primary campaign, Sanders won 22 states and received more than 13 million votes in primaries and caucuses. After losing the nomination to Hillary Clinton, he endorsed the Democratic nominee and has campaigned for her during the presidential election.

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