That's the joy of being a Democrat. They can outright lie, distort, obfuscate and smear their opponents without consequence. Democrats are without consciences and are totally committed to converting America to a communist state. To Democrats, the end justifies the means and therefore lying is simply a tool toward that end.
Barack Obama is the epitome of the communist philosophy and he will sacrifice national security, American sovereignty and the Constitution to replace the United States of America with the USSA - The United Socialist States of America.