It's easy to talk about Congress as an "it," but Congress is really a "they." The 435 members of Congress must make social choices about how their institution will operate and what policies will be enacted. Those choices are animated by the individuals members. As a starting point for our discussion of Congress, look over the website of Congressman Bill Flores, who represents the 17th District of Texas, which includes Texas A&M.
What kind of information does he provide? What is political? What is personal? What is focused on legislation? What is focused on other services offered by his office? What overall impression is his website designed to create? What might his website tell you about what's important to members of Congress.