Sen Michael Mccaul + minimum net worth + 294.21 million,  When McCaul first appeared on Roll Call's annual survey of "The 50 Richest Members of Congress" in 2005, he reported a minimum net worth of about $12 million.

His financial disclosure report now depicts a fortune worth almost 25 times that, making him the wealthiest member of Congress, at least on paper.

McCaul ranked fifth among last year's class of richest lawmakers, with a minimum net worth of at least $73.75 million. That amount has since risen to more than $294 million.

The lion's share of McCaul's wealth is held by his wife, Linda McCaul, the daughter of Clear Channel Communications CEO and founder Lowry Mays. The congressman's dramatic rise in net worth in 2010 appears to be the product of a generational wealth transfer.
A footnote to McCaul's newest report notes that "certain assets" owned by his spouse were "acquired via a gift from spouse's parents." The accounts were not identified.
On his financial disclosure, McCaul listed a new asset: the Linda McCaul Descendant Trusts, owned by his wife and valued at more than $50 million. According to his report, that trust was invested in several other family partnerships.

McCaul, likewise, added two trusts under the ownership of his dependent children, including one trust valued at $25 million to $50 million and another at $1 million to $5 million.

Another of Linda McCaul's investment accounts appears to have doubled in value, moving from a minimum worth of $25 million to a minimum of $50 million.