Description
参考资料：
https://www.migrationpolicy.org/article/biden-three-immigration-record
https://www.nytimes.com/interactive/2024/01/09/opinion/immigration-in-one-chart.html
https://www.npr.org/2018/01/25/580222116/the-gops-evolution-on-immigration
https://www.npr.org/2019/02/19/694804917/democrats-used-to-talk-about-criminal-immigrants-so-what-changed-the-party
https://cis.org/Arthur/CBP-Border-Numbers-Released-December-Was-Officially-Worst-Month-History
https://fivethirtyeight.com/features/how-democrats-became-stuck-on-immigration/
https://www.nytimes.com/2024/01/23/opinion/immigration-migrants-border-crisis.html
