It's not as cut-and-dried as it may seem. Murky special election provisions cloud the picture.
Guns. Immigration. Budget. It's getting real.
Six in 10 voters in New Jersey are unaware that their senator is in his 80s (89, to be exact), but those who do know say it's a liability.
"This is a terrible tragedy," Lautenberg says. "And we’re not yet sure what all of the facts are."
The three oldest senators who have lost primaries in recent decades all came in the last two elections. Is the New Jersey Democrat next?
A new poll suggests a Booker for Senate campaign in 2014 would be a coronation.