(CNN) -- Sen. Hillary Clinton got her campaign back on track with projected wins in the Texas, Ohio and Rhode Island primaries. Sen. Hillary Clinton claimed victory in Texas, Ohio and Rhode Island. Delegate-rich Texas and Ohio were considered must-wins for her campaign. Obama, who claimed victory in Vermont, had won 12 straight contests since Super Tuesday on February 5. Texas also held Democratic caucuses Tuesday, but it was too close to declare a winner. "For everyone here in Ohio and across America who's been ever been counted out but refused to be knocked out, for everyone who has stumbled but stood right back up, and for everyone who works hard and never gives up -- this one is for you," Clinton said before supporters in Columbus.
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NEW: Clinton wins in Ohio, Texas, CNN projects
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NEW: McCain clinches GOP nomination; Huckabee drops out
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NEW: Clinton wins Rhode Island; Obama wins Vermont
Among Ohio @placeholder primary voters aged 17 to 29, 65 percent went for Obama, and 34 percent went for Clinton.
Among voters aged 18 to 29, @placeholder led Clinton 61-39 percent, and among voters 60 and older, Clinton led Obama 63- 36 percent.