The requirement that brokers who provide advice be regulated as registered investment advisers may be dropped from financial-reform legislation being considered by the Senate Banking Committee, according to consumer groups and state securities regulators. Fearing that brokers and insurance groups may convince members of the committee to support doing a study only of broker-adviser harmonization, the groups held a telephone press conference today in which they blasted the brokerage and insurance industries, along with the Securities and Exchange Commission and the Financial Industry Regulatory Authority Inc. “In the past week or so, troubling reports have emerged that the committee may be considering eliminating draft legislation requirements that brokers that provide investment advice act in the best interests of their clients,” said Barbara Roper, director of investor protection for the Consumer Federation of America.