Rep.-elect Alexandria Ocasio-Cortez, D-N.Y., announced Wednesday that she would vote against her own party’s rules for the incoming House over restrictions on deficit spending, pushing long-simmering Democratic divisions into public view.

At issue is the House leadership’s plan to include “PAYGO,” short for pay-as-you-go, a rule Democrats have adopted in the past that requires them to offset any increase in the deficit by cutting spending or raising revenue elsewhere.

“PAYGO isn’t only bad economics … it’s also a dark political maneuver designed to hamstring progress on healthcare + other leg.,” Ocasio-Cortez tweeted on Wednesday. “We shouldn’t hinder ourselves from the start.”