The top intelligence official in the US said on Wednesday that the Iranian regime was "intact" but "largely degraded".

Director of National Intelligence Tulsi Gabbard and other top Trump administration officials testified at a congressional hearing for more than two hours about worldwide threats to the US, BBC reported. 

It was the first public briefing on intelligence since the war began in late February and came one day after a top counterterrorism leader resigned saying Iran had not posed an imminent threat to the US.