If the US is drawn into a war with Iran, Obama will be reelected. It is that simple. Americans don't change Presidents if the current one wants to run, during a war. Look up the history. During war, if the President runs, he's reelected - party matters not. America rallies to its Presidents when in a war.
In three days, Greek coastguard rescues 2,500 migrants (Reuters)
from the article: Israeli warnings on Iran war are more than empty threats