Outgoing Alaska Gov. Sarah Palin on Saturday laid the groundwork to take on a larger, national role after leaving state government, citing a "higher calling" with the aim of uniting the country along conservative lines.

The abruptness of her announcement and the mystery surrounding her plans has fed widespread speculation. But Palin attorney Thomas Van Flein on Saturday warned legal action may be taken against bloggers and publications that reprint what he calls fraudulent claims.

"To the extent several websites, most notably liberal Alaska blogger Shannyn Moore, are now claiming as 'fact' that Governor Palin resigned because she is 'under federal investigation' for embezzlement or other criminal wrongdoing, we will be exploring legal options this week to address such defamation,"