Constitutional law attorneys handle cases involving the construction and interpretation of federal and state constitutions, including individual rights and governmental powers. Constitutional law cases can involve issues like First Amendment rights -- such as freedom of speech, press, and religion -- and the checks and balances on authority among different branches of government. Most of the federal constitutional rights are found in the Bill of Rights, that was created originally as a limitation on the action by the federal government, but many of those rights are also applicable to the states through the Fourteenth Amendment.
Campbellton is an unincorporated community in Atascosa County, Texas, United States. According to the Handbook of Texas, the community had an estimated population of 350 in 2000. It is located at 28°44′51″N 98°18′09″W / 28.7475°N 98.3025°W / 28.7475; -98.3025 (28.7474820, -98.3025108), at the junction of U.S. Highway 281, FM 1099, and the Atascosa River in southeastern Atascosa County, approximately 12 miles east of Christine and 54 miles south of San Antonio. Campbellton is part of the San Antonio Metropolitan Statistical Area. Although it is unincorporated, Campbellton has a post office with the zip code of 78008.. Public education is provided by the Pleasanton Independent School District.