WASHINGTON (AP) — It's still early, but there are some things to know about the evolving 2016 presidential contest.
For one, there's the notion that nothing can stop Hillary Rodham Clinton.
But flash back to her 2008 run.
In a 2006 poll, she topped her nearest potential rival by 2-to-1. That was noncandidate Al Gore.
When the poll asked who should be president, this guy from Chicago named Obama scored 1 percent.
A year later, pundits judged her the winner of debates. She had the broadest coalition. She was racking up endorsements.
Then came a shocking third-place finish in the Iowa caucuses — and an epic, bruising — losing — struggle.
This time, until she decides what she's doing, the Democratic contest is sitting on cinder blocks like a race car without wheels.