When it comes to style, most of the 535 members of Congress wear conservative suits that reflect the power on Capitol Hill. For some of their fresh-faced interns, however, skimpy tank tops, jeans, short skirts and flip-flops are the "underdressed" norm. "In what I'm wearing, you can see a lot of skin, and I've seen a lot of girls walk around maybe not buttoned up," said Erica Matson, a congressional intern. "These girls wear tight pants, too, and they think maybe they're not pushing the limit, but they are." With hopes of one day entering the political work force, as...