Iran's progress toward having a nuclear weapon is central to the current conflict between Israel and Iran. Before launching recent attacks against Iran's nuclear sites, Israel said it had evidence Tehran was on the brink of building a nuclear weapon.

RCP White House reporter HPil Wegmann asked Karoline Leavitt at Thursday's press briefing whether the intelligence used to determine that Iran is getting closer to completing a nuclear weapon comes from American or Israeli sources,

In a statement on Friday, when the attacks were launched, the Israel Defence Forces said they were revealing for the first time Iran's secret and accelerating plan for the development of a nuclear weapon that could threaten Israel.