Proof that Democrats have no principles -- only tribal loyaltiesBy bombing Libya, President Obama accomplished some things once thought absolutely impossible in America:a) War-mongering liberals. Liberals are now chest-thumping about military "progress" in Libya. Even liberal television and radio cite ingenious reasons why an optional, preemptive American intervention in an oil-producing Arab country, without prior congressional approval or majority public support -- and at a time of soaring deficits -- is well worth supporting, in a sort...