Americans divide evenly on the nuclear deal with Iran in a new ABC News/Washington Post poll, with somewhat more support when information about the monitoring process is provided.

With no description, 45 percent support the deal and 44 percent are opposed. When details about monitoring and penalties for violations are included in the question, the divide becomes 51-41 percent, compared with 56-37 percent in mid-July.

The deal, in any case, has grown less popular as it has taken shape. ABC/Post polls found 64 percent support for a negotiated agreement in November 2013 and 59 percent last March.

The poll, produced for ABC by Langer Research Associates, finds views on the issue sharply polarized. With no details provided, support ranges from 59 percent among Democrats to 45 percent of independents and 28 percent of Republicans. It varies similarly by ideology and also sharply by age, backed by 64 percent of young adults vs. 36 percent of those age 50 and up.

The second version of the question, finding somewhat more support, notes that as part of the deal, �international inspectors would monitor Iran�s facilities, and if Iran is caught breaking the agreement economic sanctions would be imposed again.� In this version, opposition among Republicans has increased from 54 percent in July to 68 percent now. It�s little changed among independents or Democrats.
Methodology
This ABC News/Washington Post poll was conducted by landline and cellular telephone Sept. 7-10, 2015, in English and Spanish, among a random national sample of 1,003 adults. Results have a margin of�sampling error�of 3.5 points, including the design effect. Partisan divisions are 33-22-35 percent, Democrats-Republicans-independents.

The survey was produced for ABC News by�Langer Research Associates�of New York, N.Y., with sampling, data collection and tabulation by Abt-SRBI of New York, N.Y. See details on the survey�s methodology�here.

By ABC News