Report: Palin speech to offer 'full-throated defense of the Tea Party'

Although nobody knows yet whether former Alaska Gov. Sarah Palin plans to announce her candidacy at her much-anticipated Iowa speech tomorrow at noon, details of the speech’s substance are beginning to emerge.

ABC’s Shushannah Walshe and Sheila Marikar report, citing unnamed sources, that Palin will offer a “full-throated defense of the Tea Party.”

“Regardless of what she decides to do, this rally is for the Tea Party to kick off this [presidential] campaign,” a source told ABC.

Palin’s speech is expected to focus on her…