United States president Donald Trump on Thursday tweeted his support for the North American bid for the 2026 soccer World Cup and issued a veiled threat to nations that might oppose it.

Morocco is the only rival to a joint bid to stage the event from the United States, Canada and Mexico, with the FIFA Congress due to choose the hosts in Moscow on June 13.

"The U.S. has put together a STRONG bid w/ Canada & Mexico for the 2026 World Cup," Trump tweeted.

"It would be a shame if countries that we always support were to lobby against the U.S. bid. Why should we be supporting these countries when they don’t support us (including at the United Nations)?"

Reuters