Clinton, outlining her economic agenda, seized upon the Bush comment last week that "people need to work longer hours."
Clinton said Bush "must not have met many American workers," and said he wouldn't hear that sentiment from teachers or nurses or truck drivers.
"They don't need a lecture. They need a raise," she said. Clinton called raising incomes for hard-working Americans the defining economic challenge facing the nation.
Clinton made no mention of her chief Democratic rival, Vermont Sen Bernie Sanders, who has wooed Democrats by making economic inequality the central plank of his insurgent campaign.
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But her message appeared aimed at liberals who have expressed anxiety about the uneven recovery of the economy since the Great Recession.
"I believe we have to build a growth and fairness economy. You can't have one without the other," Clinton said.
Allie Brandenburger, a Bush spokeswoman, said in response that Clinton was "proposing the same failed policies we have seen in the Obama economy, where the typical American household's income has declined and it's harder for businesses to hire and the middle class to achieve rising incomes."
All three were addressing the National Council of La Raza conference later today, appealing to members of the nation's largest Latino advocacy organization.