The whole USA-Iran started over again when Trump unilaterally withdrew from the nuclear accord. Tensions have been escalating ever since, and this move *will* lead to war and hundreds if not thousands of deaths - including American ones. And yet, Republicans will still claim it's all Iranian provocation and American defense protecting your own interests.
I'm very far from a fan of Iran - the brother of someone I studied with was detained and sentenced to death in Iran! But this whole thing was avoidable. Iran was slowly modernizing, secular and more moderate forces were gaining ground every election.
A) This is all a diversion from the impeachment
B) War usually helps get re-elected
C) This should bloody well BE another impeachable offense. Killing a high-ranking official from another nation IS an act of war; unlike killing a terrorist. If any other country had killed someone of similar stature on your end, the bombardment would already have started. Retaliation will be bloody and inescapable.