What if past elections were held today?

[tpfkaw]

As it says in the title.  They hold the same positions, and people now know about their presidencies and personal lives (so Hoover might attack Roosevelt for Japanese internment and opposing anti-lynching laws, for example).

2008: McCain does better, close but lean-Obama.
2004: Kerry landslide
2000: Gore landslide
1996: Similar to IRL, Clinton does better in the NE and west and Dole does worse in the South.  Perot might do slightly better.
1992: Clinton wins by a larger margin, Perot does better, winning Maine.
1988: Much closer, but Bush still wins
1980/1984: 50-state Reagan landslide
1976: 50-state Ford landslide
1972: Close, McGovern wins
1968: HHH landslide, Wallace near wiped out
1964: 50-state LBJ landslide (SoCons would go for LBJ)
1960: Kennedy landslide
1952/1956: Eisenhower landslide, smaller than IRL simply due to increased polarization
1948: Truman landslide
1940/1944: FDR wins by larger margins
1936: FDR landslide, Landon does slightly better
1932: 50-state FDR landslide
1928: Smith landslide
1924: Davis nearly wiped out, Coolidge narrowly defeats LaFollette
1920: Cox landslide
1916: Hughes landslide
1912: Can the initial Roosevelt lead be whittled down due to revelation of his more "interesting" views?  Wilson will be wiped out, Debs may replace Roosevelt as the left candidate if Roosevelt is sunk.
1908: Taft landslide
1904: lean Roosevelt win
1896/1900: Close between McKinley and Debs

[tpfkaw]

Is it with the conditions of the time (ie Great Depression for 1932, slavery issue for 1860, etc) or in the current context ?

It's the current context, but they still have the exact same views.  So Breckinridge might argue for the reinstitution of slavery, for instance...