Poll reveals Americans happier than ever as Trump claims Biden has brought US to ‘brink of ruin’

The former president also touted his own stringent immigration policies, a number of which Mr Biden has spent his first six months in office trying to revise.

"We deported criminal aliens by the thousands... and we built almost 500 miles of the border wall," the former president said. "Now the Biden administration has turned the border into the single greatest disaster in American history."

Mr Trump’s comments coincide with a release of a poll that reveals how American optimism is highest in more than 10 years.

A new Gallup poll has found that 59.2 per cent of Americans say they are “thriving” as of June this year, the highest recorded number in over 13 years.

In comparison, by the same point during Mr Trump’s administration, just 31 per cent of Americans said the country was going in the right direction.

Despite the positive response to Mr Biden’s presidency, the former president continued to insist at the conference that the nation had been lost without him in his absence.

“Never forget that the radical left is not the Majority in this country—we are the Majority, and it’s not even close,” Mr Trump told the crowd as he continued to push baseless election fraud claims.

The former president also once again teased a possible 2024 run for president, without officially committing to another campaign during the 90 minute remarks.

"I could have a nice, beautiful life and here I am on a Sunday in Texas,” Mr Trump said as the crowd began to chant "Four more years! Four more years!"

The convention has previously been a cornerstone for measuring the current landscape of the GOP but has in recent years become a parade of conspiracy theories and a stage for culture wars.