well, let's go back, professor zelizer, to foreign policy. what was the was there a reaction then from the soviet union? did vietnam come up early in his administration? it's not really. vietnam's already underway. obviously, several administra tions had already increased the u.s. presence there, including president kennedy, who ramped up the number of advisors there. but if you look at public polls, for example, most americans didn't really know anything about vietnam. we don't have a military presence there during this moment. the bombing campaign he will orchestrate will be several months from then. so it's not a really big issue at the time for the united states. it's already, you know, a raging battle in vietnam and the gop. political stakes in the minds of leaders are clear, but it's. not front and center of his agenda. it won't really accelerate until august of 1964. and what about the soviet union? was there a response to the kennedy assassination and the johnson presidency early on? well, from what we know, i think the effectiveness