Trump says every adult American will get $5,000 if Republicans win midterms

US President Donald Trump says he would offer every adult American a $5,000 (£3,700) payout if Republicans win both chambers of Congress in November's midterm elections – a plan that would cost more than a trillion dollars.

The offer was made in a speech at the party's first-ever convention in the middle of a US presidential term.

He gave no details on how it would work or be funded – saying only that the money would have to be spent in the US. Vice-President JD Vance has linked the plan to the revenue that Trump has raised for the US government using tariffs.

Democrats labelled it an "empty promise" and others questioned whether such a pledge was legal or feasible.

It may be the first time a US president offered such a payout to Americans, in the context of an election year plea to get out and vote.

The idea drew raucous applause at the convention and Trump seemed to relish the moment.

There are nearly 270 million American adults, meaning a $5,000 payout would cost the US government some $1.3 trillion.

Questions have begun to be raised about whether his plan is feasible – especially as prices rise in the US, partially as a result of the war that the US and Israel started with Iran in February.