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How to Read the Final Pre-Midterm Poll Numbers Like an Analyst
The NBC poll's approval, economy and party-image figures each answer a different question. Here is what each one does and does not tell you before Tuesday.

The NBC poll's approval, economy and party-image figures each answer a different question. Here is what each one does and does not tell you before Tuesday.

Two ways to pick a nominee, two very different electorates — and the difference shapes who runs, who wins, and who shows up.

Single-issue voters let one cause decide their vote, and campaigns take notice. Here is who they are, why they matter, and where their influence stops.

Most readers stop at the headline number. The three checks below take two minutes and catch most of what polls hide.

Discovery, depositions and quiet negotiation decide most cases long before a jury is seated.