Denmark's Queen Margrethe II, currently the world's longest-serving monarch, revealed in her New Year's speech that she's stepping down after 52 years on the throne. She'll be succeeded by her son, Prince Frederik. "CBS Evening News with Norah O'Donnell" delivers the latest news and original reporting, and goes beyond the headlines with context and depth. Catch the CBS Evening News every weekday night at 6:30 p.m. ET on the CBS Television Network and at 12 a.m. ET on the CBS News app. Subscribe to the "CBS Evening News" YouTube channel: https://youtube.com/CBSEveningNews Watch full episodes of "CBS Evening News": https://cbsnews.com/evening-news/full-episodes/ Follow "CBS Evening News" on Instagram: https://instagram.com/cbseveningnews/ Like "CBS Evening News" on Facebook: https://facebook.com/CBSEveningNews Follow "CBS Evening News" on Twitter: https://twitter.com/CBSEveningNews Download the CBS News app: https://cbsnews.com/mobile/ Try Paramount+ free: https://paramountplus.com/?ftag=PPM-05-10aeh8h For video licensing inquiries, contact: [email protected]