(NBC) - Hillary Clinton is officially running for president.
"Americans have fought their way back from tough economic times, but the deck is still stacked in favor of those at the top," she said in a video posted on HillaryClinton.com. "Everyday Americans need a champion, and I want to be that champion."
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Clinton appears towards the end of the 2-minute and 18-second video, which features a series of Americans talking about what they're getting ready for in the future.
"I'm getting ready to do something too," she says, standing in front of a home with a garden and trellis in the background. "I'm running for president."
John Podesta, the chairman of her presumptive campaign, also sent an email message to Democratic backers Sunday saying "it's official: Hillary's running for president."
"She is hitting the road to Iowa to start talking directly with voters. There will be a formal kickoff event next month, and we look forward to seeing you there," he wrote.
On Saturday, President Barack Obama praised his 2008 Democratic rival, saying she would be"an excellent president" with " some strong messages to deliver."
"She was a formidable candidate in 2008, she was a great supporter of mine in the general election, she was an outstanding secretary of state, she is my friend," Obama said. "I think she would be an excellent president."
Her entry into the race also drew preemptive criticisms from some GOP presidential hopefuls.
In a web video, Republican Jeb Bush blasted "the Obama-Clinton foreign policy that has damaged relationships with our allies and emboldened our enemies."
On NBC's Meet the Press, Kentucky Sen. Rand Paul suggested that the Clintons "think they're above the law," and his campaign announced a new cable television ad that calls her "a path to the past."