[ansel12]

Palin and the rest of the California right is desperate to stop Tom Campbell first, before facing Boxer.

With only weeks to go, Carly has the money and the numbers to stand a good chance of doing just that.

Palin can actually help some in the Carly vs Campbell battle, nothing could have been done to make Devore suddenly close up a consistent 20 point deficit to knock out Campbell, but Carly has the money and position to close a 4 to 7 point gap with Palin's help, especially if Devore drops out in a week or two.

[FreeReign]

...nothing could have been done to make Devore suddenly close up a consistent 20 point deficit to knock out Campbell,...

Source. Thanks!

[Bratch]

If the race were between Fiorina and DeVore, Governor Palin’s chose might be different. But it’s clear she believes that Campbell and Fiorina are the only two viable candidates.

So she picks the one who’s the most conservative.