By David Hylton
"He's going to rule himself out and put this to rest once and for all," a Ryan aide told CNN.
There has been speculation in recent weeks that Ryan would run for president at a contested Republican convention this summer if one of the candidates does not receive enough delegates to secure the nomination.
To get the Republican nomination, 1,237 delegates are needed. Donald Trump currently has 743 delegates, Ted Cruz has 545 and John Kasich has 143.
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