No nuclear weapon has been deployed in war since the U.S. dropped atomic bombs on Hiroshima and Nagasaki in Japan in 1945, and any use of such weapons against an Iranian facility would be extremely controversial in the U.S. and worldwide.

Just ask Jimmy Carter, whose White House term was forever framed by the unsuccessful attempt to rescue hostages held by Iran in 1979. That led to his defeat in 1980 by Ronald Reagan. President Donald Trump no doubt is aware of history – and perhaps irony as well – as events in Iran are again front and center at a pivotal moment early in his second stint in the White House.

An appeals court is allowing President Donald Trump to keep control of National Guard troops he deployed to Los Angeles following protests over immigration raids