Since late twentieth and early twenty-first centuries, the border region, including el paso, mcallen, and brownsville, has remained politically a bastion.

The correct answer to fill in the blank is:

El Paso, Mcallen, and Brownsville, has remained politically a Democratic Party bastion.

Along with the Republican Party, the Democratic Party is one of the 2 major political parties in the United States. The main difference between the 2 is that the Democratic party believe that the federal government must take an active role in people's lives, mainly those who are in need while the Republican party believes otherwise.

crop rotation kepy different plants in the soil instead of once constintly. when switching out plants you have different nutrients being absorbed at different speeds and different roots growing differently therfore the spoil and water flow have to adapt and carry fresh nutrients to carry the constant changes that were going on in the soil.

in 1897, pershing became a tactical officer at west point, and that's where he was given the nickname "black jack." pershing's first name is "john," for which "jack" is a nickname, and he was a white man who commanded black troops. hence "black jack".