U.S. Secretary of State Marco Rubio is holding a closed briefing with senior lawmakers regarding the situation with Iran, according to CNN.
This comes as Washington and Tehran prepare for a third round of scheduled nuclear negotiations in Geneva, amid growing concerns about the potential escalation of regional tensions.
Meanwhile, President Donald Trump is preparing to deliver a State of the Union address at a sensitive time, reflecting the increasing worries about Iran's policies and how to engage with it diplomatically.