Key Experience

  • Served as chief advisor to the Senate Majority Leader and the Senate Republican leadership on tax, trade, financial services and retirement matters.
  • Key staff architect of the Majority Leader’s endeavors in the Tax Cuts and Jobs Act in December 2017.


Brendan Dunn brings a wealth of knowledge and experience to clients who are seeking to influence policy outcomes in Washington. He has a particular, in-depth understanding of the implications of 2017 tax and financial regulatory reform, having served a key role in their passage. He was also on point for Senate Republican leadership on the latest renewal of the Trade Promotion Authority.

Representative Work

  • Served as the key staff architect of Majority Leader McConnell’s endeavors with respect to the historic passage of the Tax Cuts and Jobs Act in December 2017.
  • Following the 2016 election, acted as point person for the Senate GOP leadership on tax reform negotiations with the so-called Big Six—the White House, the Department of the Treasury, the Senate Finance Committee, the House Ways and Means Committee, Senate Majority leadership and House Majority leadership.
  • Helped shepherd the Senate passage of bipartisan legislation to ease the regulatory burden on community banks via banking regulatory relief legislation.
  • Covered financial services and trade for the Senate Republican leadership, acting as the liaison to the Senate Banking Committee and the Treasury, as well as to the Senate Finance Committee and the Trump administration.
  • In a two-year stint as special counsel and general counsel of the Senate Finance Committee, advised the committee’s ranking member, Orrin Hatch (R-UT) on a range of health, tax and entitlement issues.