Gingrich: Surge or Bubble?

Gallup reports:

After enjoying 14- to 15-percentage-point leads over Mitt Romney in early December, Newt Gingrich is now statistically tied with Romney in national Republican preferences for the 2012 GOP presidential nomination: 26% for Gingrich vs. 24% for Romney. This follows a steady decline in support for Gingrich in the past 10 days.

The latest findings are from Dec. 13-18 Gallup Daily tracking, based on 1,177 Republicans and Republican-leaning independents who are registered to vote. Gallup initiated Daily tracking of the Republican presidential trial heat on Dec. 1, and reports the results in continuous five-day rolling averages.

CNN reports:

Newt Gingrich's lead in the race for the GOP presidential nomination has evaporated, according to a new national survey.

A CNN/ORC International Poll released Monday indicates that 28% of Republicans and independents who lean towards the GOP say the former House speaker is their choice for their party's nominee, with an equal amount supporting former Massachusetts Gov. Mitt Romney. In CNN's previous national poll, conducted last month, Gingrich held a 24%-20% margin over Romney. And Gingrich's lead over the rest of the field of candidates was even larger in other surveys conducted at the beginning of this month.

Full results (pdf)

Public Policy Polling reports:

Newt Gingrich's campaign is rapidly imploding, and Ron Paul has nowtaken the lead in Iowa. He's at 23% to 20% for Mitt Romney, 14% for Gingrich, 10% each for Rick Santorum, Michele Bachmann, and Rick Perry, 4% for Jon Huntsman, and 2% for Gary Johnson.

Gingrich has now seen a big drop in his Iowa standing two weeks in a row. His share of the vote has gone from 27% to 22% to 14%. And there's been a large drop in his personal favorability numbers as well from +31 (62/31) to +12 (52/40) to now -1 (46/47). Negative ads over the last few weeks have really chipped away at Gingrich's image as being a strong conservative- now only 36% of voters believe that he has 'strong principles,' while 43% think he does not.