With or without US Jewish support, it's hard after Iraq and Afghanistan to see us getting involved in ANY war unless the bad guys attack us. The US public is historically against our going to war against anyone. Most historians agree Roosevelt might not have been able to get us to go to war against Germany if they hadn't declared war on us.
Red Cross delivers aid to Taiz, Yemen, for first time since August (Reuters)
from the article: Jewish support for U.S. Iran strike drops, AJC poll shows