While House Democrats marched toward impeaching President Donald Trump during the past week, voters have told pollsters that they want to re-elect him.

That's the main takeaway from a USA Today/Suffolk University poll published Tuesday as the president's political antagonists prepare to finalize the rules of an impeachment debate whose outcome is all but assured.

The poll of 1,000 registered voters showed Trump beating all five of the Democrats' top White House contenders, by margins ranging from 3 to 10 points. Former Vice President Joe Biden performed best against him, losing by just 3 percentage points.

Trump beat Vermont Sen. Bernie Sanders by 5 points, Massachusetts Sen. Elizabeth Warren by 8, former New York City Mayor Mike Bloomberg by 9, and South B end, Indiana Mayor Pete Buttigieg by 10.

President Donald Trump is favored for re-election against all five Democratic front-runners despite his likely impeachment this week

Joe Biden (left) and Bernie Sanders (right) fared best against Trump in the USA Today/Suffolk University poll, but they're 3 and 5 points behind him, respectively

A few hours after USA Today released its 2020 bombshell, CNN published poll numbers showing support for impeaching Trump and removing him from office has dipped by 5 points since Rep. Adam Schiff's House Intelligence Committee wrapped up its hearings and pased the baton to Rep. Jerry Nadler's House Judiciary Committee.

Forty-five per cent of voters want the president bounced from the White House, compared with 50 per cent a month ago. Opposition to that scenario rose from 43 per cent to 47 per cent, putting Democrats' dream scenario under water.

Even among voters who register as Democrats, enthusiasm for firing Trump has waned from 90 per cent to 77 per cent.

And less than a quarter of voters say a Senate trial, no matter the outcome, might change their minds.

A trio of Democrats emerged as the second tier in the CNN poll (from L to R): Elizabeth Warren trails Trump by 8 points, Mike Bloomberb by 9, and Pete Buttigieg by 10

Americans, however, continue to believe the president did something wrong: A narrow majority of 51 per cent say he misused his office to gain political advantage over Biden by asking the president of Ukraine to investigate him for corruption.

The House Rules Committee meets Tuesday to decide the parameters of a landmark impeachment debate on Wednesday. The entire House could vote to impeach Trump by day's end, making him only the third of 45 U.S. presidents to be tarred by 'the "I" word.'

Both of the others, Andrew Johnson and Bill Clinton, survived Senate trials. Richard Nixon resigned the presidency before the House could bring articles of impeachment to a vote, short-circuiting the process.

Trump performed better in the CNN poll with male voters than with females, mirroring his 2016 election numbers.