Could the answer be, he sees the continued leadership of President Donald Trump as just plain political folly. The Republican-dominated Senate will not challenge Trump on anything that he dreams up. The term "loose cannon" would certainly seem appropriate in describing Trump's past and especially his present actions. The longer Trump stays at the wheel the sooner we all may be subject to a nuclear war. Crazy idea you say, stick around and see.
Congress has given a "free pass" to most all of Trump's fantasies. Iran will eventually attack some American base somewhere in the Middle East as revenge for the killing of Soleimani. If Trump is allowed to attack 52 sites including cultural and military, it might as well be called an all-out war. That's OK, you say, because we win. Allow history to tell you why that's not so.
When Mongols attacked the Mid East and Europe, wherever there was refusal to surrender a city or fortress, all adults and children were slaughtered. The reason was if the women and children were saved, the Mongols knew they'd only have to fight the same people again as the memory of killing their fathers would fester into retaliation. See any connection here with the possibility of going to war against Iran? Can history really repeat itself? You tell me.