Rand Paul plans to attack Donald Trump again in tonight's debate.
- A lot is riding on Carly Fiorina's performance.
- New Hampshire poll shows tight race between Trump, Fiorina, and Ben Carson.
- Joe Biden criticizes Trump for his immigration stance.
- New fight over defunding Planned Parenthood.
- Clinton and Sanders are finally feuding.
- Analysts: Senior intelligence officers exaggerated ISIS reports.
New at Reason.com:
By Charles Oliver
Presidential candidates demand more action on illegal immigrants and illegal drugs, but the two goals conflict. By John Stossel