链接 Here: you need to read English

https://www.cnn.com/2019/04/28/perspectives/milken-institute-conference-capitalism/index.html

https://www.cnn.com/2018/08/26/politics/socialism-capitalism-polls-sanders-warren/index.html

https://www.cnn.com/2019/04/16/politics/pete-buttigieg-2020-socialism-capitalism-cnntv/index.html