ABC News’ Sheila Marikar and Shushannah Walshe report: Sarah Palin has not canceled her keynote speech for the Tea Party of America’s Saturday rally in Indianola, Iowa, according to the event’s organizers. Ken Crow, the founder of the Tea Party of America, told ABC News this morning that he “hung up with [Palin's] people five minutes ago” and “she’ll be here on Saturday.” “Gov. Palin is a lady of her word and impeccably honest,” he added. He admitted that the organization’s encountered “a couple of errors” in planning the Sept. 3 rally. “I’m naive when it comes to politics and...