Twelve counties in the U.S. are named after which politician and lawyer known as the "Little Giant?"

They are named after Stephen A. Douglas, who was a senator from Illinois and one of two Democratic candidates for the presidency of the USA against Abraham Lincoln in 1860.

https://en.wikipedia.org/wiki/Douglas_County

The two had previously contested the 1858 race to represent Illinois in the US Senate, a contest that featured a famous series of debates, and which was won by Douglas.

Douglas was nicknamed the "Little Giant" because he was short in physical stature but a forceful and dominant figure in politics.

https://en.wikipedia.org/wiki/Stephen_A._Douglas