Half of all Americans surveyed believe President Trump should be impeached and removed from office — but that sentiment is losing ground among Republicans, according to a poll released Tuesday.

The 50 percent who back impeachment has risen from 47 percent last month when the inquiry was launched in Congress and from 41 percent in May, the CNN survey found.

Forty-three percent of respondents said the president should not be impeached, and 7 percent were either undecided or didn’t have an opinion.

Broken down by party lines, 87 percent of Democrats back the effort, as do 50 percent of independents. Meanwhile, just 6 percent of Republicans favor impeaching the president and the survey found support for impeachment among Republicans has fallen significantly.

The September poll showed 14 percent of Republicans, 74 percent of Democrats and 46 percent of independents favored impeachment.

In contrast, 29 percent of Americans believed former President Bill Clinton should be impeached and 67 percent disagreed in September 1998, a month before the House voted to begin the proceedings against him.

Asked how they believed Democrats in Congress were handling Trump’s impeachment inquiry, 43 percent say they approved and 49 percent disapproved.

Questioned about Republicans in Congress, 30 percent approved and 57 percent disapproved.

Forty-nine percent said Trump “used the presidency improperly” when he asked Ukrainian President Volodymyr Zelensky to begin an investigation into Joe Biden, his potential 2020 presidential opponent, while 43 percent said Trump did not.

But despite the impeachment inquiry swirling around the president, his approval rating has remained relatively stable.

He has a 41 percent approval rate and a 57 percent disapproval rate, which is similar to the 39-55 percent rate in September and the 40-54 percent rate in August.

The poll was conducted nationally by SSRS between Thursday and Saturday and surveyed 1,003 adults.

It has a plus/minus 3.7 percentage-point margin of error.