This article first appeared on GuruFocus.

Amazon (NASDAQ:AMZN) and Microsoft (NASDAQ:MSFT) are backing a new push in Washington that would make it harder for U.S. chipmakers to send high-end AI processors to China, according to the Wall Street Journal. The proposal, called the GAIN AI Act, is pretty simple in spirit: before Nvidia (NASDAQ:NVDA) or AMD (NASDAQ:AMD) can ship their most advanced chips overseas, they’d have to offer them to American companies first.

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Lawmakers say the goal is to make sure U.S. tech firms aren’t stuck waiting in line for the hardware that powers modern AI. Senator Jim Banks described it as giving America a first right of refusal so domestic companies get early access before anything leaves the country.

Microsoft has already come out in support of the bill, and Amazon’s cloud unit has told Senate staffers it backs the effort too. Anthropic (ANTHRO) is on board as well. Meta (NASDAQ:META) and Google (NASDAQ:GOOG) haven’t publicly commented, but they’d almost certainly benefit if supply gets easier.

Chipmakers, however, aren’t thrilled. Nvidia CEO Jensen Huang has been vocal about the risks of strict export controls, warning they could slow innovation and hurt U.S. leadership. Both the Trump and Biden administrations have struggled with the same tension: protect national security without stifling American chip firms.

The Senate has already tucked the main parts of the bill into the upcoming defense authorization package, which could land on Trump’s desk later this year.