If referring to Bush as a "winshield cowboy" the sole reserve of Laura Bush? And if it is such common [information], then it wouldn't be plagiarism, since it had become common usage.
Sort of how Reagan was able to co-opt the term "Star Wars" for his missile shield defense system.
windshield
The point was that the MSM was pretending to the public that Fox just made this up on his own, and was somehow giving away some great revelation.
When the President has never pretended to be a horseman, and has NAMED HIMSELF a windshield cowboy.
“...Reagan was able to co-opt the term “Star Wars”...”
I think Reagan called it the Strategic Defense Initiative or SDI. Opponents like Ted Kennedy and the media derisively used the nickname “Star Wars” and it stuck.