Thousands of Republicans gathered in Dallas, Texas, for a high-profile party convention aimed at energizing voters ahead of the US midterm elections.

President Donald Trump urged supporters to back Republican candidates, framing the vote as crucial for his political agenda.

He also promised a $5,000 payment to every adult American if Republicans prevail and defended his policies on Iran and oil prices.

Meanwhile, Democrats criticized the event, and some Republican candidates skipped the convention amid concerns over Trump's approval ratings and their electoral prospects.