They are deploying their vast wealth in the political arena, providing almost half of all the seed money raised to support Democratic and Republican presidential candidates. Just 158 families, along with companies they own or control, contributed $176 million in the first phase of the campaign, a New York Times investigation found. Not since before Watergate have so few people and businesses provided so much early money in a campaign, most of it through channels legalized by the Supreme Court's Citizens United decision five years ago. The 158 families each contributed $250,000 or more in the campaign through June 30. An additional 200 families gave more than $100,000. Together, the two groups contributed well over half the money in the presidential election - the vast majority of it supporting Republicans. "The campaign finance system is now a countervailing force to the way the actual voters of the country are evolving and the policies they want," said Ruy Teixeira, a political and demographic expert. The donor families' wealth reflects, in part, the vast growth of the financial-services sector and the boom in oil and gas. They are also the beneficiaries of political and economic forces that are driving widening inequality. Together, the [energy and finance] industries accounted for well over half of the cash contributed by the top 158 families.