(no time for detailed justification, unfortunately)
Woodrow Wilson (terrible record on racism, economic policy, screwig up post-WWI settlement, flubbing opportunity to crush Bolshevism in its cradle, civil liberties, and more)
Andrew Johnson (major responsibility for failure of Reconstruction).
FDR (immensely harmful economic and social policies and terrible civil liberties record outweighs some real good)
Hoover (Smoot-Hawley tariff and other awful policies caused great harm and set the stage for 3 above).
Trump (key role in shifting GOP in horrible new direction, evil immigration policy, Jan. 6, and more;. he can yet move up this list if he wins a second term....).