President Biden's approval rating among voters in the state of Iowa has plummeted in recent months.

More Iowans disapprove of the job Biden is doing than approve – Biden has a 43% approval rating and 52% disapproval rating, according to a recent Des Moines Register/Mediacom Iowa poll. Five percent of people polled said they are not sure whether they approve or disapprove.

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Vice President Harris faced similar numbers. Fifty percent expressed disapproval of Harris' job performance compared to 42% who approved.

Biden's job approval numbers among Republican versus Democratic Iowans are miles apart. Eighty-nine percent of Democrats approve of Biden compared to just 6% of Republicans, according to the June Iowa poll.

President Joe Biden speaks during a meeting with FEMA Administrator Deanne Criswell and Homeland Security Adviser and Deputy National Security Adviser Elizabeth Sherwood-Randall, in the Roosevelt Room of the White House, Tuesday, June 22, 2021, in Washington. (AP Photo/Evan Vucci)

However, in March, Biden was doing much better in Iowa. His approval rating was 47% and his disapproval rating was 44%.

Iowans trust Biden more on issues like the coronavirus pandemic and infrastructure than criminal justice and immigration, according to the poll. Fifty-three percent approve of Biden's handling of the pandemic, 45% approve of his handling of infrastructure, 29% approve of his handling of immigration and 35% approve of his handling of criminal justice.

Nationally, a May poll indicated that most Americans approve of the overall job Biden is doing in the White House. Biden stood at 63% approval and 36% disapproval in the poll, which was conducted April 29-May 3.

The Des Moines Register/Mediacom poll was conducted June 13-16 among 807 Iowa adults. Its margin of error is 3.5 percentage points.

Fox News' Paul Steinhauser contributed to this report.