Iran revolution meant '40 years of failure': Trump advisor

Iran's Islamic revolution four decades ago inflicted "failure and broken promises" on the country, President Donald Trump's chief foreign policy advisor said Monday.

"It's been 40 yrs of failure. Now it's up to the Iranian regime to change its behavior, & ultimately up to the Iranian people to determine the direction of their country," national security advisor John Bolton tweeted on the anniversary of the upheaval.

Bolton said Washington would support "the will of the Iranian people, & stand behind them to ensure their voices are heard."