When North Vietnam acted against South Vietnam and sent troops into it in the early 1960s, Congress authorized the president to escalate the conflict.
The Gulf of Tonkin incident saw the North Vietnamese navy attack a U.S. warship.
This led to the Johnson administration asking the U.S. Congress for permission to escalate the conflict which was granted to them.
Find out more on the Gulf of Tonkin incident at https://brainly.com/question/15593184.
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