Point one- women are paid less than men

"The Obama White House in 2011 paid female staffers 18 percent less than their male colleagues:

According to the 2011 annual report on White House staff, female employees earned a median annual salary of $60,000, which was about 18 percent less than the median salary for male employees ($71,000).
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Point two- There are comparable numbers of women and men employed

"The White House itself employs almost exactly the same number of men and women, and administration officials said they hoped to even out the ratio across the government and help ensure that future Democratic administrations have a diverse and deep bench of candidates for high-level jobs.
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CONCLUSION- Women have lower level jobs than men, on the average.