History of the United States

The treaty slowed the arms race between the USSR and the US.

During the 1970s.

El Salvador's government disregarded human rights.

President Nixon shared most of the past US presidents' beliefs about the expansion of executive privilege. On the whole, the power of the US presidency has had an expanding role in US politics since the early years of Jefferson.

the shift away from traditional values

oil prices increased

Retiree's are older, and typically politically conservative, so the large migration of retirees to Arizona, Florida, and the other 'Sunbelt States' led to those states becoming conservative as the population of retirees increased in the warm-weather states..

It gave federal money to states to fund social programs

The event was the TET, or Chinese New Year, that began on January 30th, 1968. The North Vietnamese Army and Viet Cong forces launched attacks in every province of South Vietnam. The City of Hue (the birthplace of Ho Chi Minh) was held by the communist forces for over three weeks while U.S. forces fought in the streets house to house to reclaim the city.

When news reports of this major offensive reached the United States, the President, Congress, the public, and military leaders felt that a quick stop to the conflict was not possible.

The TET Offensive proved to be a military disaster for the North, and did not accomplish the massive uprising from South Vietnam's citizens in favor of the North - but the public opinion in the U.S. that winning was not easily possible gave the communist forces a huge psychological victory.

The federal government should intervene to help the needy.

The Soviet Union felt it had to have at least parity in arms with the US. The US felt the same way about the Soviet Union.
This led to the so called arms race.
The US was and is more economically sound and stable, effectively richer.
The Soviet Union spent more and more on arms, far more than it could afford, thus becoming effectively bankrupt.