> When a senior leader within a nation is murdered by agents of a foreign government without even the decency of declaring war first, of course there will be calls for revenge.

I don't see why whether there was a declaration of war or not should matter if people want revenge. However, since you brought it up, Trump did tweet this all-caps tirade: https://twitter.com/realdonaldtrump/status/10212345256266096... . I remember being very concerned that a president would post something like that. Anyhow, you have to admit that it shows how Trump wasn't keeping retaliatory plans hidden from Iran.