In a letter to Majority Leader Harry Reid, 18 Democrat senators and senators-elect have asked for “a delay in the implementation” of the Obamacare medical device tax. Like most of the significant tax increases in Obamacare, the medical device tax is scheduled to take effect on Jan. 1, 2013, conveniently after the 2012 presidential election. Each of the 18 Democrat signatories voted for or supported Obamacare in the first place. And now they want a sweetheart exemption from one of its most onerous provisions. Even in Washington DC, that shows a lot of gall.