having two houses of congress

 the upper house of U.S. congress

the lower house of U.S. congress

 periods in time in which congress meets

breaks

take a break

the people back home ina  senator or representatives state or district.

the person who already holds office

the reassignment of seats in the House of Representatives after each ten-year census on gains or losses in a states population  

when a district is redrawn because of a gain or loss of seats in the House

create a district to favor one party over another

the party that has the most members in the Senate or House during a term

the party with the fewer number of seats in the Senate or House of Represenatives during a term

a closed meeting

a member of the house that helps the speaker and another party leaders and is the main spokesperson for his or her party in the House

the majority leaders assistant

small groups of representatives who work out the details of a bills