Final answer:
The party structure in Texas affects interest group power and influence by determining top leadership positions, influencing legislation based on which party is in power, and working together in activities such as recruiting voters.
Step-by-step explanation:
The party structure in Texas affects interest group power and influence in several ways. Firstly, the party in power determines the top leadership posts in the state house and senate, as well as the composition of committees. This gives the majority party an advantage in meeting its policy objectives. Secondly, interest groups often develop close relationships with one political party, and their ability to influence legislation rises and falls based on which party is in power. Finally, political parties and interest groups work together in activities such as recruiting and organizing voters to get candidates elected.