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Iowans gave Donald Trump the state's electoral votes in 2016, but a majority of likely voters continue to view him unfavorably as president, according to a new Des Moines Register/Mediacom Iowa Poll.

In addition, a quarter of Iowa voters say the U.S. Senate's confirmation of U.S. Supreme Court Justice Brett Kavanaugh is a major factor in their vote for the U.S. House of Representatives, the Iowa Poll found. A majority of men view Kavanaugh favorably, while more women have an unfavorable view of him than not.

The statewide poll of 801 likely Iowa voters was conducted by Selzer & Co. from Oct 30 to Nov. 2. It has a margin of error of plus or minus 3.5 percentage points.

► Election Day 2018 voter guide: Everything Iowans need to know before you vote

Favorable views of Trump tick up

Fifty-two percent of Iowa voters say they have an unfavorable view of the Republican president, while 45 percent view him favorably.

The new poll's findings underscore that Trump remains a polarizing figure in Iowa: 43 percent of voters say they have a very unfavorable view of the president. Views skew sharply by party. While 85 percent of Iowa's Republican voters view the president favorably, just 4 percent of Democratic voters do, and 43 percent of independents.

Similarly, 85 percent of Republican Gov. Kim Reynolds’ supporters view Trump favorably, but only 7 percent of Democratic candidate for governor Fred Hubbell’s supporters view Trump positively.

Trump defeated Hillary Clinton in Iowa two years ago by a 51-42 percent margin.

► More from the Des Moines Register Iowa Poll

Split views of the newest justice

Regarding Kavanaugh, the new Supreme Court justice, the Iowa Poll found 25 percent of voters say his confirmation is a major factor motivating their vote in the U.S. House contests, while 15 percent say it's a minor factor. There is virtually no difference by candidate support or by party identification.

Kavanaugh is known well enough by 86 percent of Iowa voters for them to rate their feelings toward him. Slightly more Iowans say they have favorable views (45 percent) than unfavorable views (41 percent). Among Reynolds supporters, 83 percent say they view the justice favorably. Among Hubbell supporters, 75 percent say they view him unfavorably.

There is also a gender split toward Kavanaugh within the Iowa electorate. Fifty-four percent of men feel favorably toward Kavanaugh, while a plurality (47 percent) of women feel unfavorably.

Kavanaugh, who had been an appeals court judge, was confirmed on a 50-48 vote by the U.S. Senate in early October. His nomination by Trump triggered sharp divisions in the U.S. Senate, largely along party lines.

His confirmation process turned into a pitched partisan battle after Christine Blasey Ford, a psychology professor in northern California, alleged Kavanaugh sexually assaulted her at a party in Chevy Chase, Maryland, in 1982.

ABOUT THE IOWA POLL

The Iowa Poll, conducted October 30-November 2, 2018, for the Des Moines Register and Mediacom by Selzer & Co. of Des Moines, is based on telephone interviews with 801 Iowans ages 18 or older who say they will definitely vote or have already voted in the 2018 general election for governor and other offices.

Interviewers with Quantel Research contacted 1,087 Iowa adults with randomly selected landline and cell phone numbers supplied by Survey Sampling International. Interviews were administered in English. Responses were adjusted by age, sex and congressional district to reflect the general population based on recent census data.

Questions based on the subsample of 801 Iowa likely voters have a maximum margin of error of plus or minus 3.5 percentage points. This means that if this survey were repeated using the same questions and the same methodology, 19 times out of 20, the findings would not vary from the true population value by more than plus or minus 3.5 percentage points. Results based on smaller samples of respondents — such as by gender or age — have a larger margin of error.

Republishing the copyright Iowa Poll without credit to the Des Moines Register and Mediacom is prohibited.