Hello!!
As per the book, the strong commitment to a political party and a reluctance to acknowledge the opposing party's views is known as partisan politics.
Good luck :)
A. A person with a higher income pays more money in taxes.
A progressive tax's percentage is dependent on what income bracket you are in. So if you are in a higher income bracket (you earn more) then you would pay a bigger percentage than someone in a lower income bracket. That is why it is a "progressive tax", because it gets progressively bigger.
The Mexican-American War (1846-1848) marked the first U.S. armed conflict chiefly fought on foreign soil. It pitted a politically divided and militarily unprepared Mexico against the expansionist-minded administration of U.S. President James K. Polk, who believed the United States had a “manifest destiny” to spread across the continent to the Pacific Ocean. A border skirmish along the Rio Grande started off the fighting and was followed by a series of U.S. victories. When the dust cleared, Mexico had lost about one-third of its territory, including nearly all of present-day California, Utah, Nevada, Arizona and New Mexico.