On December 15, 2015, Campaign for Accountability asked the Department of Justice to investigate three former Obama administration officials, David H. Stevens, Michael D. Berman and Jim Parrott, for possible violations of laws restricting post-employment activities.

On October 5, 2015, Campaign for Accountability asked the Office of Congressional Ethics to investigate 11 members of Congress for possible criminal and ethics violations by accepting contributions from the payday lending industry shortly before or after taking official actions in support of the industry.

On October 1, 2015, Campaign for Accountability called on two congressional committees to investigate Martin Shkreli, the CEO of Turing Pharmaceuticals, for manipulating the Food and Drug Administration’s regulatory process for his personal financial gain.

On June 8, 2015, Campaign for Accountability petitioned a Nevada court to release reports that may have connected Sheldon Adelson's Las Vegas Sands (LVS) casinos in Macau with criminal triads.

On June 1, 2015, CfA filed complaints with the Utah, Arizona and Montana Attorneys General requesting investigations into Utah State Representative Ken Ivory (R-West Jordan) for engaging in an illegal scheme to defraud local government officials out of taxpayer funds. CfA alleges Rep. Ivory has solicited funds from local officials, falsely claiming the federal government can be forced to transfer public lands to the states.

On May 13, 2015, Campaign for Accountability filed a lawsuit in the U.S. District Court for the District of Columbia on behalf of investor Stephen Silberstein against the U.S. Securities and Exchange Commission. The lawsuit challenged the refusal of the SEC to grant a rulemaking petition Mr. Silberstein filed requesting that the agency issue a regulation that would require public companies to disclose all corporate funds spent on political activities.