Hedge fund billionaire Ken Griffin and University of Chicago economist Anil Kashyap warned in an op-ed that President Donald Trump’s public criticism of the Federal Reserve and efforts to influence monetary policy risk undermining the central bank’s independence and could produce economic and political costs.

Griffin, the founder and CEO of Citadel who is reportedly worth more than $40 billion, and Kashyap, a professor at Chicago Booth, wrote in The Wall Street Journal that “the president’s strategy of publicly criticizing the Fed, suggesting the dismissal of governors and pressuring the central bank to adopt a more permissive stance towards inflation carries steep costs.” They said that seizing control of monetary policy to drive down interest rates is a “risky game.”

The duo pointed to historical precedent, arguing that efforts by President Richard Nixon in the 1970s to pressure the Fed contributed to a prolonged rise in prices. Griffin and Kashyap wrote that allowing political pressure to weaken the Fed’s resolve could leave tens of millions of retired Americans with diminished savings and could “cost the administration dearly in the midterms.”

“Credibility in economic policymaking is built slowly, through practice and respect for processes, and can be lost quickly if those processes are disregarded,” they wrote, urging that it is in the president’s interest for the Fed to be seen as independent and to act independently.

The op-ed comes amid repeated public critiques from Trump of the central bank and calls from some allies to lower short-term interest rates. Griffin and Kashyap cautioned that attempts to force the Fed into a more accommodative stance could have unintended effects on market expectations, noting that efforts to reduce short-term rates can raise expected inflation and, as a result, push up long-term rates.

The warnings echo similar concerns from other economists, including Nobel laureate Paul Krugman, who has on multiple occasions argued that political control or pressure over the Fed could produce higher inflation and adverse economic consequences. Analysts say such developments could complicate the Treasury’s debt-management strategy and unsettle financial markets that rely on the Fed’s commitment to price stability.

Federal Reserve independence has been a long-standing pillar of U.S. economic policy, designed to insulate monetary decisions from short-term political pressures. Griffin and Kashyap emphasized that undermining that independence risks not only higher inflation but also a loss of public trust in economic institutions.

The op-ed frames the debate as both economic and political: while some advocates view lower rates as a way to boost growth and bolster the president’s standing with voters, the authors said the likely macroeconomic response could be higher inflation expectations and increased long-term borrowing costs, outcomes that could undercut the intended political benefits.

Financial markets have closely watched rhetoric around the Fed. Economists and investors generally cite central-bank credibility as crucial to anchoring inflation expectations; sustained doubts about the Fed’s willingness to act could prompt changes in wage and price-setting behavior and alter investment decisions.

Griffin and Kashyap’s intervention adds a prominent business voice to the debate about the boundaries of presidential influence over the nation’s central bank. Their op-ed underscores a recurring theme in U.S. politics: the tension between short-term political objectives and longer-term economic stability that federal institutions are meant to protect.