How did the Tet Offensive damage American interests in Vietnam?

The Tet Offensive, launched by North Vietnamese and Viet Cong forces in January 1968, significantly damaged American interests in Vietnam by shattering the perception of U.S. military superiority and progress in the war. The widespread and coordinated attacks during what was supposed to be a peaceful lunar New Year holiday revealed the strength and resilience of the enemy, leading to a crisis of confidence among the American public and policymakers. This shift in perception fueled anti-war sentiment in the U.S., ultimately undermining support for continued military involvement in Vietnam and prompting a reevaluation of American strategy in the region.