Warsh is widely viewed as being aligned with Trump, who has aggressively demanded rate cuts and even joked that he would sue Warsh if he does not lower borrowing costs. Trump repeatedly berated Powell for not lowering rates quickly enough, calling him a “numbskull” and an “average mentally person” and even threatened to fire him. Trump has said rates must be lower to reduce the government’s borrowing costs and to juice economic growth.

From Wikipedia:

Warsh was sworn in on February 24, 2006, by Vice President Dick Cheney at the Eisenhower Executive Office Building.[28] He became known as a key ally of Bernanke and a conduit for executives in financial markets,[23] specializing in Wall Street finance.[29] Warsh expressed concerns about persistent inflation in remarks before the New York Stock Exchange in November, defying figures indicating that price pressures were being eased.[30] After fears of a worldwide financial crisis mounted in February 2007, he remained optimistic about market liquidity.[31] Warsh testified before the House Committee on Financial Services in July, stating that the subprime mortgage crisis did not yet present systemic risk.[29] He was an initial critic of protecting systemically important financial institutions.[32] Warsh was involved in securing an emergency loan to secure Bear Stearns.[33]

Warsh was significantly involved in the Federal Reserve’s response to the financial crisis. According to David Wessel’s In FED We Trust (2010), Warsh was among the “Four Musketeers”, a consortium of policymakers at the Federal Reserve who led the central bank through the crisis, including Bernanke; vice chairman Donald Kohn; and Timothy Geithner, the president of the Federal Reserve Bank of New York.[34] He was an opponent of allowing Freddie Mac and Fannie Mae to acquire additional assets and sought to regulate the entities, leaving open the possibility of acquiring them.[35] Alongside Geithner, Warsh managed Lehman Brothers’s various assets.[36] Amid concerns involving Wachovia’s acquisition of Golden West Financial,[37] he proposed a merger between Wachovia and Morgan Stanley,[38] and urged Robert K. Steel, the chief executive of Wachovia, to sell his firm to Goldman Sachs.[39] Warsh additionally suggested to Gary Cohn, the president of Morgan Stanley, that his firm merge with Citigroup.[40]

Warsh was additionally involved in the sale of Bear Stearns to JPMorgan Chase, the bankruptcy of Lehman Brothers, and the bailout of American International Group.[41] Warsh and Geithner negotiated the agreement that converted Morgan Stanley and Goldman Sachs into bank holding corporations.[42] Emails obtained by congressional investigators indicated that Warsh was sharply critical of Bank of America’s decision to attempt to withdraw from acquiring Merrill Lynch & Co…[43] He pressured the company’s board to find a successor to its chief executive, Ken Lewis.[44] By January 2009, Warsh was among several candidates being considered to succeed Geithner as the president of the Federal Reserve Bank of New York.[45] He was considered a leading candidate alongside William C. Dudley,[46] but withdrew himself from consideration that month.[47] By July, Warsh had widely been expected to leave the Federal Reserve Board of Governors.[48]

https://en.wikipedia.org/wiki/Kevin_Warsh