WASHINGTON, July 12 (Xinhua) -- Former vice presidential candidate Sarah Palin's new TV ad campaign marks an early bid for the 2012 presidential nomination, some experts said.
But Alaska's former governor is a polarizing figure -- well liked by conservatives and despised by liberal Democrats -- and her major challenge is to appeal to those outside of her Republican base.
Palin ran on the 2008 ticket with Senator John McCain, R-Az., bursting onto the national political scene after years as a virtual unknown.
Recent polls found her to be among the top Republican contenders so far. A Des Moines Register survey found that most Iowa Republicans favored former Massachusetts Gov. Mitt Romney. But Palin came in second, followed by former House Speaker Newt Gingrich.
Palin's TV ad campaign appeals to the populist sentiment of those who believe an expanding federal government is increasingly out of touch with most Americans.
"We don't like this fundamental transformation and we're going to do something about it," Palin said in the ad. "Women are rising up and saying, 'No we've had enough already.' Because moms kind of just know when something's wrong."