US President Donald Trump has hailed the “great American comeback” in a speech to Congress on the eve of his expected acquittal in his impeachment trial, reports BBC.

At his annual State of the Union address, Mr Trump set out his case for another four years in office.

The president refrained from lashing out directly at the lawmakers who have attempted to remove him from office, though he did jab at Democrats.

Mr Trump struck an upbeat note in a speech lasting one hour and 18 minutes that contrasted sharply with his lament of “American carnage” in his 2017 inaugural presidential address.

In an implicit rebuke to his predecessor Barack Obama, the president told his audience: “In just three short years, we have shattered the mentality of American decline and we have rejected the downsizing of America’s destiny.

“We are moving forward at a pace that was unimaginable just a short time ago, and we are never going back!”

Mr Trump repeatedly swiped at Democrats, including left-wing candidates such as Bernie Sanders, who are vying to challenge him for the presidency.

“We will never let socialism destroy American healthcare!” said the president, whose critics point out that he has not put forward a healthcare plan of his own.

House Speaker Nancy Pelosi ripped up a copy of his speech behind him.

The Republican president delivered Tuesday night’s nationally televised speech in the Democratic-controlled House of Representatives, where he was impeached in December.

On the other side of the Capitol, the Republican-led Senate is all but certain on Wednesday to clear the president of corruption charges in a party-line vote.