Does foreign policy have anything to do with politics?

A nation's foreign policies has everything to do with politics. The agenda of foreign policies is greatly dependent upon the political views of a majority political party or simply a long standing policy that the majority of political leaders and the citizens have in a defacto manner have agreed upon.

A perfect example of this was the foreign policy of the United States during the Cold War. The universal policy of which ever party was in power was to take all steps necessary to prevent the Soviet Union from expanding. How or to what degree this policy was implemented depended on the politics of the day.