US History › Section P · From the Reagan era to today › Topic P.7
New century, old disputes
The twenty-first century revived some of the oldest American arguments: who belongs, what counts as a marriage, and how far science should guide policy. Debates over immigration, same-sex marriage and climate change show how values, faith, evidence and party loyalty collided.
In this topic
- Old questions, new forms
- A changing population
- Reform that never passed
- States, schools and children
- Worked example: why did immigration reform keep failing?
- The road to marriage equality
- The courts decide
- The climate change dispute
- Worked example: separating science from policy
- Common mistakes to avoid
- Key takeaways
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