Support for the impeachment inquiry into President Donald Trump is on the rise across the political spectrum, a new Washington Post/Schar School poll found.

Since July, Post/ABC News polling has found that support for an impeachment investigation has grown by 21 percentage points among Republicans, 25 points among Democrats, and 20 points among those who identify as independents.

In the latest survey, 58% of American adults said they supported House Democrats' newly opened impeachment investigation, and 49% said they think Trump should be removed from office.

Americans' sentiment has shifted dramatically over the past few weeks following the revelation that Trump asked the Ukrainian president to initiate an investigation into former Vice President Joe Biden and his son Hunter.

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Support for the impeachment inquiry into President Donald Trump is on the rise across the political spectrum.

In a new Washington Post/Schar School poll, a whopping 58% of American adults said they supported House Democrats' impeachment investigation into Trump, while 49% said they think he should be removed from office.

Among those who said they supported the impeachment inquiry, just 6% said they opposed removing the president from office.

Since July, Post/ABC News polling has found that support for an impeachment investigation has grown by 21 percentage points among Republicans, 25 percentage points among Democrats, and 20 percentage points among those who identify as independents.

Polls indicate that Americans' sentiment has shifted dramatically over the past few weeks.

A Quinnipiac University poll published on September 25 found that just 37% of Americans supported impeaching and removing Trump from office. In a poll published five days later, that number had jumped by 10 percentage points, to 47%.

Similarly, Reuters/Ipsos polling found that support for impeachment rose by 8 percentage points in the last week of September.

Read more: Just a handful of Republican lawmakers have rebuked Trump's calls for Ukraine and China to interfere in the US election



News broke late last month that Trump asked Ukrainian President Volodymyr Zelensky to do him "a favor" by initiating an investigation into allegations of corruption against former Vice President Joe Biden and his son Hunter. Shortly before the president's July 25 phone call with Zelensky, the White House froze $391 million in key security aid to the country.

In the latest Post/Schar School poll, a majority of Americans — 62% — said they believe Trump's request of the Ukrainian government to initiate an investigation into the Bidens was inappropriate. But while 84% of respondents who identified as Democrats and 63% of those who identified as independents said this, just one-third of those who identified as Republicans said the same; nearly 60% said Trump's request was appropriate.

Trump has repeatedly insisted that his call with Zelensky was "perfect" and has called criticism of his actions a "witch hunt." His 2020 reelection campaign is using the impeachment inquiry to raise funds.

Overall, 35% of the respondents — 68% of self-identified Republicans and 14% of self-identified Democrats — said Trump upholds "adequate standards for ethics in government."

The poll, conducted from October 1 to 6, surveyed 1,007 adults by phone and has a margin of error of plus or minus 3.5 percentage points; the margin for subgroups is larger.