WASHINGTON (AP) — White House budget director Russ Vought said the Trump administration will withhold $2.1 billion for Chicago infrastructure projects, expanding funding fights that have targeted Democratic areas during the government shutdown.

The pause affects a long-awaited plan to extend the city’s Red Line train. Vought wrote on social media Friday that the money was “put on hold to ensure funding is not flowing via race-based contracting.”

He made a similar announcement earlier this week involving New York, where Vought said $18 billion for infrastructure would be paused, including funding for a new rail tunnel under the Hudson River.

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This story has been corrected to show $18 billion, not $18 million, was held in New York.