What a coward. He should make a payment, and THEN challenge anyone else to match it. Wuss..
better yet he should fork over the $1billion in back taxes his companies have owed since 2002 and stop fighting the IRS to get out of his tax bill...
http://www.theblaze.com/stories/how-much-is-buffetts-berkshire-hathaway-back-tax-bill-exactly-about-1-billion/