More than one-third of Americans support beginning an impeachment inquiry against President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE, according to a new poll released Wednesday.

The Politico-Morning Consult poll found that the percentage of those surveyed who back beginning an impeachment inquiry against the president falls short of the proportion of Democratic lawmakers pushing to begin the proceedings.

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Thirty-seven percent of respondents in the poll support beginning impeachment proceedings, while half of those surveyed said they oppose it. Only 12 percent of respondents said they were undecided.

The poll was divided heavily among party lines.

Among Democrats, the poll found that 7 in 10 respondents support beginning impeachment proceedings, while 18 percent are in opposition. Meanwhile, Republican voters remain unmoved, with only 6 percent saying they want to begin proceedings against Trump.

Independent voters also did not support starting an impeachment inquiry, as 31 percent of those respondents said they want Congress to launch impeachment proceedings and 50 percent said Congress should not do so.

“Initiating impeachment proceedings against President Trump remains a popular move among the Democratic base, but it won’t necessarily help them win voters across the aisle,” Tyler Sinclair, Morning Consult’s vice president, told Politico.

Since the release of former special counsel Robert Mueller Robert (Bob) MuellerCNN's Toobin warns McCabe is in 'perilous condition' with emboldened Trump CNN anchor rips Trump over Stone while evoking Clinton-Lynch tarmac meeting The Hill's 12:30 Report: New Hampshire fallout MORE’s report in the spring, support for impeachment has fluctuated slightly and has yet to break 40 percent. Opposition to impeachment has varied from 46 percent to 53 percent.

Sinclair noted that “numbers have marginally changed from July following Robert Mueller’s testimony on Capitol Hill, after which 34 percent of independents and 8 percent of Republicans supported impeachment.”

To date, there are nearly 140 House Democrats on record endorsing the impeachment of Trump in some form. House Speaker Nancy Pelosi Nancy PelosiDemocratic senator to party: 'A little message discipline wouldn't kill us' Overnight Health Care: New wave of COVID-19 cases builds in US | Florida to lift all coronavirus restrictions on restaurants, bars | Trump stirs questions with 0 drug coupon plan Overnight Defense: Appeals court revives House lawsuit against military funding for border wall | Dems push for limits on transferring military gear to police | Lawmakers ask for IG probe into Pentagon's use of COVID-19 funds MORE (D-Calif.) has beaten back calls for impeachment, though she has said the party is on the same page as the House focuses on investigating Trump.

The poll was conducted Sept. 13-15 and surveyed 1,994 registered voters. The poll has a margin of error of plus or minus 2 percentage points.