Has US foreign policy been a positive or a negative for international diplomacy, since 1980?

Positive,

Explanation:

Although the political views of Thomas Jefferson were very different from those of Washington, Jefferson agreed that isolation and neutrality were the most beneficial course for the United States.

there are many ways of getting involved on your local party. attached you will find the brochure that describes some ideas: go ahead and visit your local hq, become a volunteer on your comnunity or struggle up for your own ideas so you can make them real.

well it definitly does because if you are seen as weak you will be seen as unimportant and they will walk all over you and the us is the most powerful military and the largest in the world

hope this