Alf Landon is not a good model here, but Harold Stassen is.
Harold Stassen was never the Republican Party nominee for President.
Alf Landon was nominated by the Republican Party in 1936 and he couldn’t crack double digits in the electoral college.
In a three-way race with Obama and Sarah Palin, Romney finishes third.
Just like William Howard Taft couldn’t crack double digits in the electoral college for his Presidential re-election in 1912, Romney will suffer the same fate. Theodore Roosevelt, as a third-party candidate in 1912, won 88 electoral votes by winning the states of Washington, South Dakota, Minnesota, Michigan and New York.