RNC uses Windows, DNC uses Linux. Howard Dean even coined the phrase "Open Source Politics", and his campaign manager is (was?) a former Linux exec, of which there are few. The DNC also created a site named demzilla.org, in tribute to the "Mozilla" group of open source programmers. None of this is news to you, of course. You're here always defending it.
And Windows is the operating system of choice for Planned Parenthood and communism.org. Of course you make no ideological connection there, since it ruins your argument.