The Bill Clinton "is" thing is a bit like the hot coffee lawsuit: When you look at the details, it's quite a bit less silly then the news made it seem
The Paula Jones lawyers deposed Clinton earlier with a ridiculous definition of sexual relations, the judged chopped it down way too far, and Clinton didn't answer one more bit then he had to because they kept leaking shit, and no one answers more than they have to in a deposition.
http://www.gpo.gov/fdsys/pkg/GPO-CDOC-105hdoc311/pdf/GPO-CDO... for the grand jury testimony about all this. Look at page 454 by searching to read the start of it.
All that said, yes, there is a point where definition of a word doesn't really matter. So yes, I agree with you, George Bush hiked the taxes on Jan 1 2013 on the upper class due to a expiration clause on a tax bill, and the Republicans opted not to renew the payroll tax holiday Obama got in exchange for a 2 year extention of the Bush Tax Cuts. They did not agree to extend these cuts when he did not agree to continued extensions of the Bush tax cuts for the highest wage income earners.