Donald Trump Donald John TrumpBiden leads Trump by 36 points nationally among Latinos: poll Trump dismisses climate change role in fires, says Newsom needs to manage forest better Jimmy Kimmel hits Trump for rallies while hosting Emmy Awards MORE holds a narrow 2-point lead over Hillary Clinton Hillary Diane Rodham ClintonBiden leads Trump by 36 points nationally among Latinos: poll Democratic super PAC to hit Trump in battleground states over coronavirus deaths Battle lines drawn on precedent in Supreme Court fight MORE in Iowa, following the FBI’s recommendation not to prosecute the presumptive Democratic presidential nominee over her email scandal, well within a new poll's margin of error.

Trump, the presumptive Republican presidential nominee, is backed by 44 percent of Iowans, compared to 42 percent for Clinton in the Monmouth University Poll released Tuesday.

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“It’s a toss-up right now, but Iowa could be the leading edge of a midwest push for Trump,” Patrick Murray, director of the Monmouth University Polling Institute, said in a statement.

The Monmouth poll provides an early look at the impact of Clinton’s email scandal on her campaign, with 43 percent of Iowans saying she acted criminally. Almost a third, 32 percent, say she demonstrated poor judgment.

The poll, which surveyed 401 likely Iowa voters, was conducted between July 8 and July 11, just days after FBI Director James Comey said Clinton was “extremely careless” in her use of a private email server to conduct government business while secretary of State. He did not, however, recommend filing charges against her.

Monmouth pollsters also found that 6 percent of Iowans support Libertarian Party presidential nominee Gary Johnson Gary Earl JohnsonWhat the numbers say about Trump's chances at reelection Presidential race tightens in Minnesota as Trump plows resources into state The Hill's Campaign Report: Biden condemns violence, blames Trump for fomenting it l Bitter Mass. primaries reach the end l Super PAC spending set to explode MORE, while 1 percent support Green Party nominee Jill Stein.

Another 6 percent remain undecided.

In other findings, 39 percent of independents back Trump, compared to 35 percent for Clinton.

Monmouth also found the Sen. Chuck Grassley Charles (Chuck) Ernest GrassleyGOP set to release controversial Biden report McConnell locks down key GOP votes in Supreme Court fight Senate Republicans face tough decision on replacing Ginsburg MORE (R-Iowa) holds a 10-point lead over his Democratic challenger, Patty Judge. This is a significant decline for the incumbent, who has historically enjoyed 30-point victories in the Hawkeye State. The poll attributes Grassley’s lack of support to Iowans’ disapproval over his attempt to block a hearing on President Obama’s nominee for the Supreme Court.

The new poll has a margin of error of 4.9 percentage points.