A partisan debate is brewing in the Senate over whether a more complex regulatory system could actually lead to increased systemic risk for U.S. banks even as House Republicans weigh proposals to eliminate financial and consumer protections under the Dodd-Frank Act. Discussions in the Senate Committee on Banking, Housing and Urban Affairs this week revolved around the Basel and Dodd-Frank capital and liquidity requirements and whether they are forcing big and small banks to focus more on safety and soundness instead of meeting the needs of consumers and the economy. Post-crisis financial regulations have become...