Sen. Bernie Sanders (D-VT) will introduce a bill Wednesday that aims to put a national moratorium on data center construction “until legislation is enacted that safeguards the public from the dangers of artificial intelligence.” Representative Alexandria Ocasio-Cortez will introduce a similar bill in the House in the coming weeks.

While it’s highly unlikely that the bill will pass—especially given the Trump administration’s full-throated endorsement of AI, and the massive amount of money the industry is set to spend this year in Washington—the bill marks a new line in the sand for progressives seeking to address both concern around data center construction and the potential harms artificial intelligence may bring.