The current controversy surrounding the Hillary Clinton and John Edwards campaigns raises a larger question about the state of our primary election process.  What benchmarks should a candidate meet in order to be considered viable?  And should that matter in determining who would be the best President of the United States? It seems to me the national debate is already quite limited.  The race for the highest office in the world has already been limited to who can raise the most money and who can perform well in two of the...