We're both right, Henry. Here's what Wikipedia has to say:

Replacing the letter "c" with "k" in the first letter of a word came into use by the Ku Klux Klan during its early years in the mid-to-late 19th century. The concept is continued today within the ranks of the Klan.

In the 1960s and early 1970s in the United States, leftists, particularly the Yippies, sometimes used "Amerika" rather than "America" in referring to the United States.[1] It is still used as a political statement today.[2] It is likely that this was originally an allusion to the German spelling of America, and intended to be suggestive of Nazism, a hypothesis that the Oxford English Dictionary supports.

In broader usage, the replacement of the letter "C" with "K" denotes general political skepticism about the topic at hand and is intended to discredit or debase the term in which the replacement occurs.[3] Detractors sometimes spell former U.S. president Bill Clinton's name as "Klinton" or "Klintoon".[citation needed]