Washington DC, June 18 -- US President Donald Trump on Wednesday said that he was not looking for a long-term war with Iran.

When Trump walked out on the South Lawn to meet the men installing the new flagpole at the White House, he told the media that Iran cannot have a nuclear weapon.

"We're not looking for long-term war. I only want one thing -- Iran cannot have a nuclear weapon. That's it," he said.

When asked if he had a message for the Supreme Leader of Iran who says that they will not surrender, he said, "I say, 'Good luck.'"

"For 40 years, they've been saying 'death to America,'" Trump said on Iran.

"If you go back 15 years, I was saying we CANNOT let Iran have a nuclear weapon," he said.

On being asked about striking Iran, U...