In the line, "the nation generally pursued a policy of isolationism," is this
evidence to support washington's advice or go against his advice? explain your
answer.

This supports Washington's advice. He urged the American people to take advantage of their isolation and to not get involved with Europe especially. He believed that foreign entanglement had nothing to do with the interests of the American people and told Americans to focus on their affairs. While he was against long term alliances he was for allies during a great danger.