Obamacare cleared its second big legal hurdle in three years on Thursday, and Nancy Pelosi is overjoyed.

"So jubilant about this," Pelosi said at the beginning of her weekly press conference. "It's a victory for common sense and for all American families."

In a 6-3 decision Thursday, the Supreme Court ruled in favor of Obamacare's insurance subsidies, keeping markets in 34 states intact and preserving coverage for more than 6 million Americans. But the White House's win may also bring comfort to congressional Republicans, who would have had to come up with and agree on a solution to maintain people's coverage if the Court had ruled against the subsidies—with red states potentially being the hardest hit. Just ahead of the ruling, Republicans hadn't gotten very far.

Pelosi said it's appropriate that just before July 4 the Court would rule in favor of Obamacare.

The Court's decision—as well as the law itself—"upholds the vows of our Founders, for life, liberty, and the pursuit of happiness," she said.

Asked if Republicans could try to use the reconciliation process to continue their anti-Obamacare efforts, Pelosi said "we'll keep fighting" if they do.

"They may try this, that, or the other thing, but the more time goes by, the more people benefit from the Affordable Care Act," Pelosi said, "and the more ridiculous they look."

She said House Democrats were prepared in case the Court ruled against subsidies—but wouldn't go into specifics—and said the law was written to withstand judicial scrutiny.

This is a big moment for Pelosi, who was House speaker when the Affordable Care Act was signed into law by President Obama in March 2010. In a statement ahead of her press conference, Pelosi noted that this is the second time the Court has ruled in favor of the health care law's provisions; in 2012, justices ruled that the individual mandate is constitutional.

"It is long past time for Republicans to abandon their assault on the newfound health security that the Affordable Care Act is providing millions and millions of Americans across the country," she wrote in her statement.

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