Story highlights Trump's 2-point edge over Clinton is within the poll's 4.9 point error margin

Clinton is winning with voters aged 50 and older but Trump is leading with younger voters

Washington (CNN) Donald Trump and Hillary Clinton are virtually tied in Iowa, a new poll finds.

Trump has the support of 44% of Iowa voters while Clinton received 42%, according to a Monmouth University poll released Tuesday. His 2-point edge is well within the survey's 4.9-point margin of error.

"It's a toss-up right now, but Iowa could be the leading edge of a Midwest push for Trump," said Patrick Murray, director of the Monmouth University Polling Institute.

Among other Iowa voters likely to participate in the presidential election, 6% plan to vote for Libertarian Party nominee Gary Johnson while 1% say they will back Green Party candidate Jill Stein. Another 2% plan to vote for another candidate while 6% are undecided.

Notably, Trump is beating Clinton with voters younger than 50, 51% to 32%, while Clinton is winning with Iowa voters aged 50 and older, 50% to 38%.

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