Public Policy Polling (PDF). 11/10-13. California voters. MoE ±4.4% (
1/28-30 results):
Dianne Feinstein (D-inc): 53 (51)
Tom Campbell (R): 38 (37)
Undecided: 9 (12)
Dianne Feinstein (D-inc): 56 (55)
Carly Fiorina (R): 36 (35)
Undecided: 8 (9)
Dianne Feinstein (D-inc): 55 (--)
Devin Nunes (R): 31 (--)
Undecided: 14 (--)
Dianne Feinstein (D-inc): 54 (52)
Steve Poizner (R): 35 (34)
Undecided: 11 (14)
Dianne Feinstein (D-inc): 56 (--)
Orly Taitz (R): 29 (--)
Undecided: 15 (--)
There was a brief boom in "is Dianne Feinstein vulnerable?" stories back in September, after she sported the lowest Field Poll approval numbers of her long career (41/39, according to them). Those stories quickly dwindled in the face of no other pollster looking at Feinstein and no credible Republican challenger publicly exploring a bid against her. But Public Policy Polling finally got around to cross-checking those numbers, and they find that, no, she's not looking vulnerable at all, but thanks for asking. (Feinstein, it's worth noting, is 78 and hasn't officially confirmed that she's running again, but she's pretty universally expected to seek a fourth term.)
PPP finds Feinstein with a healthy 51/38 approval rating, basically unchanged from their last look at the Golden State in January (50/39 then). Moreover, she's putting up dominant numbers against the best that California Republicans have to offer against her. The closest is sorta-moderate ex-Rep. Tom Campbell, who lost the 2000 Senate race against Feinstein and lost the 2010 Senate primary to Carly Fiorina, but even he's down 15. However, there's been no indication that Campbell, Fiorina or anyone else of stature is interested in this kind of suicide mission (Visalia-area Rep. Devin Nunes expressed some interest in it a couple weeks ago but promptly reversed himself, though that seemed to raise his profile enough to get included in this poll).
The only GOPer actually in this race, of course, is lawyer/dentist/celebrity birther Orly Taitz, who this poll shows is clearly a non-starter; her approvals are not just 4/19 among all voters, but 4/22 among Republicans. Nevertheless, there's clearly a share of Republicans who disapprove but will still vote for a ham sandwich (or, in this case, a ham sandwich wearing a weird wig) over Feinstein, as Taitz trails her by "only" 27.