John McCain may be feeling a backlash from big GOP donors angry with his support of reforms limiting the flow of “soft money” to political campaigns.

In 1961, A&P supermarket heir Marie Robertson and her husband, Charles, gave $35 million in stock to Princeton University for its Woodrow Wilson School of Public and International Affairs.

Today, the gift is worth more than $880 million.

But the university and the descendants of the couple have spent millions in legal costs in a years-long fight over how the money should be used.