• 48 hours that reset the Biden campaign
• 4 Democratic candidates. 6 major issues
원문출처 : https://www.cnn.com/2020/03/03/politics/biden-vs-sanders-super-tuesday/index.html
원문출처 : https://www.cnn.com/2020/03/03/politics/biden-vs-sanders-super-tuesday/index.html