Two recent independent polls show him 8 and 10 points behind his opponent.

An independent poll in 2009 placed the figure at around 20-22%.

So far this year, no independent polls have been conducted that would provide a realistic reading on the race.

Most independent polls put the margin at nearly twice that.

There have been no independent polls to gauge how the field is truly playing out.

There are no recent independent polls, although each campaign says its internal surveys show the other is vulnerable.

At that time some independent polls gave her a commanding 20-point lead over the incumbent.

So far, no independent poll has been conducted in the race, giving the candidates and the public little feel for who may have the edge.

No independent polls of the primary contests have been taken recently.

Most independent polls indicate the race is a statistical dead heat.