The bucket stops with President Barack Obama.
Instead of pouring cold water over his head, Obama has poured it on the idea of becoming the highest-profile participant of the ice bucket challenge.
The dare is sweeping the country and has raised more than $40 million for the ALS Association and raised awareness for Lou Gehrig's disease, also called amyotrophic lateral sclerosis, or ALS.
The challenge asks people to post videos of themselves being doused with cold water and publicly call on others to do the same within 24 hours, or donate $100 to the association.
Ethel Kennedy, the 86-year-old Kennedy family matriarch, tagged Obama to participate after recently soaking herself at her family's Massachusetts compound, knowing the president was vacationing nearby.
Obama participated financially by donating an undisclosed sum.
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