US President Donald Trump on Saturday (local time) said that Iran may "do a little bit extra" before the November 3 midterm elections, adding that the US could end it "really quick" amid tension between the two nations.

Speaking at a midterm polls rally in Clarksville, Tennessee, Trump said, "They're (Iran) sort of calming down. They'll probably do a little bit extra before the election, thinking it's going to hurt us, but we could end it really quick. They don't know how nice I've been to them."