The work of a shy, studious bachelor in his early 50s, the book ran to almost 1,100 pages. It was “An Inquiry into the Nature and Causes of the Wealth of Nations,” by Scottish polymath Adam Smith.

The campaign comes after the National Park Service removed the monument's Pride flag in the dead of night last month.

Only a few months ago, Jared Polis claimed he would not capitulate to the president's threats of "harsh measures" if Tina Peters remained behind bars.