Last year, in his first speech before the United Nations General Assembly, President Donald Trump launched a verbal attack on North Korean leader Kim Jong Un, referring to him as "Rocket Man." President Trump is set to address the assembly again on Tuesday, with a speech expected to focus on Iran. We'll discuss the speech and examine U.S.-Iran relations in light of Saturday’s deadly attack at an Iranian military parade. Iran's leaders have accused the United States of being involved in the attack.