Huckabee Gaining Ground in Iowa

It is also primarily social issues that galvanize Huckabee's backers.

More than four in 10 Huckabee voters call abortion or broader moral or values issues the race's top one or two concerns. That is nearly double the number of Romney supporters to highlight these issues. Overall, three-quarters of likely GOP voters think that abortion should be illegal in most or all cases, and among the 24 percent who want the procedure to be unlawful in every instance, 36 percent support Huckabee and 22 percent Romney.

But a slew of issues drive likely GOP caucus-goers. A quarter of those surveyed said immigration is their biggest or second-biggest concern when considering whom to back on Jan. 3. The same percentage, 24 percent, highlighted the war in Iraq, and nearly as many, 21 percent, singled out terrorism and national security.

Ten percent or more cited five other issues: the economy, health care, abortion, taxes, and morals and family values. Overall, eight issues ranked in the double digits, making the discussion in the Republican contest potentially more wide-ranging than that on the Democratic side. Among likely Democratic caucus-goers, only three issues reach 10 percent, and two -- Iraq and health care -- dominate voters' concerns.

On immigration, Romney has an edge: 27 percent said the former Massachusetts governor is best on the issue, while Huckabee and Rep. Tom Tancredo (Colo.) each received 13 percent. No candidate is clearly preferred on the other top issue, Iraq, with Giuliani, McCain and Romney each considered the best by about two in 10. Giuliani doubles up the competition, however, on handling the terrorism fight.

Romney tops the field as the candidate most trusted to handle the economy and the federal budget deficit. He and Huckabee are preferred by about equal percentages on social issues, such as abortion and same-sex civil unions.

Campaign activity on the GOP side appears to be more subdued than it is among Democrats, perhaps in part because national leaders Giuliani and McCain are not prioritizing Iowa's caucus.

About six in 10 likely caucus-goers said they have been called by one of the campaigns. Twenty-nine percent have attended a campaign event, up six percentage points from July, but far less than the percentage of Democrats who have attended an event (52 percent). A third of GOP voters have visited one of the candidates' Web sites and 29 percent have received e-mail. About one in five has spoken with or shaken hands with one or more of the GOP candidates. Fifteen percent have contributed money.

Romney, who has pinned his bid for the nomination on success in Iowa and New Hampshire, is widely seen as the candidate who has made the biggest effort in the Hawkeye state. More than six in 10 said that he has "campaigned the hardest in Iowa." That's up 14 percentage points from July, and no other candidate scored in the double digits on that question.

Romney has an advantage on the question of who has the "best experience to be president," after a 10-point increase from July, when he was about even with Giuliani and McCain. Romney had held a marginally significant edge on "best understands problems of people like you," but while he has stayed at 21 percent on this question, Huckabee has soared from 10 percent to 25 percent.

In July, Romney had the lead on "most honest and trustworthy" at 21 percent. He has risen to 25 percent, but Huckabee jumped from 10 percent to 26 percent.

Romney and Giuliani share the top spot as the field's "strongest leader" and as the Republicans with the best shot at capturing the White House in November 2008. About one in eight said Huckabee is the most electable Republican, while 1 percent thought so in July. About a quarter of evangelical Protestants now think Huckabee is the GOP's top option; four months ago, that percentage was less than 1 percent.

The poll was conducted by telephone Nov. 14 to 18 among a random sample of 400 likely GOP caucus-goers. The results have a margin of sampling error of plus or minus five percentage points.

Polling analyst Jennifer Agiesta contributed to this report.