Members of Congress hold a lot of the power in America and, a new report shows, plenty of wealth. In fact, more than half of them are millionaires.

An analysis of disclosure filings by the Center for Responsive Politics reveals that while lawmakers like to talk about the plight of poor and middle-class Americans, few of them can relate financially.

How vast is the discrepancy in their fortunes? The median net worth of a member of Congress was $1.03 million in 2013, compared with $56,355 for the average American household.

As for who is the wealthiest, Representative Darrell Issa, the California Republican, maintained his top billing with an average net worth of $448 million. He was trailed by Senator Mark Warner, the Virginia Democrat, who has an average net worth of $254 million.

Potential Republican presidential candidates appear to have comfortable nest eggs. Senator Ted Cruz’s average net worth was $3.1 million, and Senator Rand Paul’s was $1.3 million. Meanwhile, Senator Marco Rubio’s net worth was a more modest $443,508.

While Mr. Issa’s worth suffered the biggest year-on-year decline, dropping by $15.6 million, Representative Nancy Pelosi, Democrat of California, had a very profitable 2013. With her property investments doing well and her investment in the United States Football League thriving, Ms. Pelosi’s net worth rose to $100.8 million from $87.9 million, breaking the elusive nine figure mark.