How did drug use in the counterculture movement lead to new laws and a change in government policy?

Through fighting drug use in the country, the then president of the United States of America, President Richard Nixon legalized the use of drugs in America at a certain time.

Explanation:

After the counterculture movement in the 1960s, the use of drugs in the United States of America spiked past its optimum figures, prompting the president, Richard Nixon to declare war against drug use in the country. While doing this, the country spent more than a trillion dollars on the war against drug use. Down the years, it seemed that the essence of the funding of the drug use war was in vain because it yielded no results as prices of drugs became costlier than normal, the president temporarily legalized the use of drugs in the country.