What you are looking at directly above are the Electoral College maps of (top) President Reagan's 1984 presidential election's sweeping victory winning every state but Minnesota, and before that President Nixon's 1972 overwhelming victory winning every state but Massachusetts.
More importantly the right wing was not only popular, they were the power brokers of the time and they were the rulers of the kingdom. Subsequently the left wing was only able to interrupt the right wings agenda with a short stint of 4 years from President Carter. Then a more successful campaign with progressive ideals ensued with the 8 year term of President Clinton. Today it is a different story as the popularity of the Republican party continues to fade.
This next illustration is the Electoral map in Clinton's 1996 victory over Bush #1, You now begin to see the changes in the attitude toward the less populist right wing mores. In spite of Clinton's economic success, and his ability to totally eliminate the deficit and hand over the largest surplus in modern time to the next administration, the left wing failed to continue governing the White House. Instead Bush #2 won the next two presidential elections by very narrow margins, in his first victory he won the Electoral college but lost in the popular vote. In the second contest he won the state of Ohio by a few hundred votes once again giving the victory to Bush.
America is in a mess and many people are in a bad place right now, some of them because of the inept administration that ruled as an anarchy over the last 8 years, and other Americans through thoughtless spending. In the end the largest amount of money went to the top 5% of Americans while average middle class incomes decreased by $2,000 during the Bush administration. The failures and the recklessness of the past administration led to the overwhelming victory once again by the left wing and now President Obama.
President Obama's Electoral map (below) indicates that a few states that were red had felt that they needed a change from the policies that emaciated their people and they ended up in the left wing column. Although Obama had garnered 365 electoral votes in his commanding victory over John McCain, it is worth noting that Clinton's margin of victory of 379 electoral votes in his election was larger.
If the current administration is able to lift America and Americans up during the next 4 years, then there is a good chance that the map will change once again, when the incumbent, President Obama runs for the White House against Rush Limbaugh in 2012.