But the McCain merger was rocky, with the campaign's staff members expressing distrust of the committee employees who were loyalists to President George W. Bush.
Some of the commission's information may come from documents provided by current and former Olympic committee employees who met with Campbell's chief of staff Wednesday in Colorado Springs.
In mid-January, the Watchdog Institute, an independent nonprofit reporting center based at San Diego State University, obtained a list from majority spokesman Hill of 62 Republican committee employees in order to examine their work experience in light of Issa's ambitious investigative agenda.
Political action committees and employees for jet manufacturers and related aviation sectors accounted for more than $6.6 million in political contributions to federal lawmakers in the last decade, according to an analysis by MapLight, a nonprofit group that analyzes campaign finance data.
AT&T is known as a G.O.P.-leaning company; in their political donations, its political-action committees and employees have favored Republicans over Democrats almost two to one in the past two election cycles.
An analysis of campaign finance records shows that since 1997, Republicans have received only a slight majority — 56percentt — of the $4.76 million in campaign donations from the Murdoch family and the News Corporation's political action committees and employees.
Since the start of 2003 the telcos' political action committees and employees have made a combined $27 million in political contributions and sunk another $146 million into lobbying, according to the Center for Responsive Politics.
Tyson Foods spokesperson Gary Mickelson, whose company was the only one that consulted with Oxfam on these concerns ahead of the report's release, wrote that the company has "grievance systems in place as well as communications committees" for employees to discuss problems.
GrantTree, for example, has a committee of employees that sets everyone's pay (including the directors').
Mr. Issa, Ms. Lincoln, and Mr. Boren, like many lawmakers both Democratic and Republican who have backed the company, all received contributions over the years from Wal-Mart's political action committee or employees.
