I agree with Gov. Huckabee's sentiment about President Obama: 2012 will be a tough contest. But the governor's history needs a little polishing. Since 1868, five presidents were defeated for re-election (the number rises to six if 1868 is included in the series) and at least two presidents faced such long odds for re-election they gave up the contest.Grover Cleveland was defeated for re-election in 1888 after one term. His successor, Benjamin Harrison, was similarly defeated for re-election. Wil...