After some hard research, I come to conclusion that the Republicans and Democrats flip-flopped or switched issues after the 80s. It seemed to me that Republicans were actually 'liberal' during the early years: northerners, anti-slavery, more liberal. These presidents were Abraham Lincoln, Ulysses S. Grant, and William McKinely: people who were very liberal, and cared more about the people. Democrats were all 'southern', and pro-slavery during the early years. People like Andrew Jackson, Franklin Pierce, and Andrew Johnson. Then, they quickly changed. I think that they changed during the early-90s. Republicans became moderate. People like Teddy Roosevelt. Democrats became less conservative, and more moderate. People like Woodrow Wilson and FDR. FDR started what I think the 'New Age' for Republicans and Democrats. Democrats became less moderate, and more liberal. Ike (Dwight E. Eisenhower) started the 'highly-conservative' Republican age, and JFK started the 'liberal' age. This was followed up with Richard Nixon, Jimmy Carter, Ronald Reagan, Bill Clinton, and the Bush's. Suddenly in this new decade, Republicans have become far-right, and all the way conservative taking stance on different issues: anti-abortion, anti-same sex marriage, more for war then for people, less for economy, and more for tax cuts. Democrats became far liberal: pro-choice, pro-same sex marriage, people rather than war, economy & jobs.