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ALBANY — When Democrats won control of New York’s government last year, riding a national wave of liberal energy, they promised to fundamentally transform the state’s economy, infrastructure and social norms.

As their first session in power ended on Friday, it became clear just how fully they had done so.

They rewrote New York City’s rent laws , passing the strongest tenant protections in decades. They unveiled one of the nation’s most ambitious climate plans, mapping a 30-year course toward a carbon-free future. They granted undocumented residents the right to driver’s licenses, gave farm workers collective bargaining rights and passed strict anti-sexual harassment laws.

And that was just in the last two weeks.

The partisan takeover in New York was not unique. Democrats flipped seven state legislative chambers last fall, leaving Minnesota as the only state with a divided legislature.

But even as officials across the country have harnessed their new monopolies to take their states further right or left, the speed and breadth of change in Albany stood out.