The first two sections of article iv of the constitution focus on relationships between

The first two sections of article iv of the constitution focus on relationships between  different US states.

Explanation:

Article IV of the Constitution of the United States defines American federalism. It emphasizes the duties of states to each other as well as those of the federal government to them. Article IV also specifies the procedures for the admission of a new State and those for the modification of State borders.

The first section requires States to extend their "full confidence and credit" to the administrative and judicial procedures and decisions of other States. Congress can regulate how these inter-state equivalents are admitted.

Regarding the second section, the first clause implies that a state must not discriminate against citizens coming from other states in favor of its own. The second clause permits extradition upon request of a fugitive between states of the United States.

yes, there are senators in each state