09/21/2011 11:08 am ET Updated Nov 21, 2011

Warren Buffett to headline Obama campaign event

CHICAGO (Reuters) - Billionaire investor Warren Buffett will help raise money for President Barack Obama's re-election effort at a $35,800-a-ticket fundraiser next month in Chicago, an Obama campaign official said on Wednesday.

Buffett will attend the October 27 event at a private home on Chicago's North Shore that is expected to include major donors to Obama's 2008 presidential run. The Democratic president, who is not expected to attend, is running for re-election in 2012.

Buffett, the legendary chairman of Berkshire Hathaway Inc., has landed in the center of a growing political battle over Obama's proposal to raise taxes on the wealthy by inspiring the so-called Buffett Rule.

Buffett wrote a column last month saying rich people like him often pay less in taxes than those who work for them because of loopholes in the tax code, and can afford to pay more.

Obama cited Buffett on Monday in proposing a minimum tax rate for people earning more than $1 million a year. Republicans have condemned the plan as class warfare.

Buffett, a longtime Obama supporter, is also scheduled to appear at a New York fundraiser for Obama next week, with tickets ranging from $10,000 to $35,800 per guest. Both events are expected to be moderated by former White House economic adviser Austan Goolsbee, a University of Chicago law professor.

The Chicago fund-raiser will be co-hosted by investor James Crown, philanthropist Penny Pritzker, portfolio manager John Rogers Jr. and other local donors who fueled Obama's first presidential campaign and are lining up to back him again, according to Crain's Chicago Business, which reported the event on Wednesday.

(Reporting by Eric Johnson; Editing by Peter Bohan and Doina Chiacu)