Former Sen. Arlen Specter (Pa.) writes in a new book that President Obama ditched him in the 2010 election after he helped Obama win the biggest legislative victory of his term by passing healthcare reform. Specter also claims that Senate Majority Leader Harry Reid (D-Nev.) did not uphold his promise to grant him seniority accrued over 28 years of service in the Senate as a Republican. Specter, who rocked Washington’s political establishment and made headlines around the country when he left the Republican Party to join Democrats in April of 2009, has kept quiet about these slights until now. He...