Read the full ABC News/Washington Post poll

With two weeks to go before the Iowa caucuses, Mike Huckabee has taken the lead in the Republican race in what is now a two-man contest with Mitt Romney. Huckabee has the support of 35 percent of likely caucus-goers to Romney’s 27 percent, and for the first time in the ABC-Post poll, none of the other candidates rise above single digits. The poll found that Republican women, particularly those who describe themselves as Evangelicals, are a major force behind Huckabee’s rise. Three in ten of those polled named immigration as one of the top issues for them.