The correct answer to this open question is the following.
The impulses that fueled the resurrection of conservative politics in America, beginning with the rise of Richard Nixon in 1968 and continuing through Ronald Reagan in the 1980s were the following.
First of all, the victory of Republican candidate Richard Nixon, defeating Democratic candidate Hubert Humphrey in the presidential election of 1968.
American people were disenchanted with the social programs created by former Democratic President Lyndon B. Johnson, the so-called Great Society.
In 1973, important conservative political groups were created: Young Americans for Freedom and the American Conservative Union. During 1974 and 1975, other conservative and Christian groups were formed that influenced American politics.
Although Democratic candidate Jimmy Carter won the presidential election of 1976, he ended up his tenure with problems in the American economy, That episode was known as Stagflation. And there was more. Energetic crises that were teh result of a foreign issue with the Arab countries also affected the US.
Those events paved the way for former actor Ronald Reagan to became the next President. Reagan, a conservative Republican, was the ideal candidate for the many conservatives in the country that desired a radical change in US politics.