Every modern White House has put out news on contentious issues late on Friday in the hope that doing so will bury it, or reduce the amount of critical scrutiny it would otherwise receive. What is unusual is the degree to which this White House has relied on this tactic.

On Friday, Jan. 30, President Obama revoked the ban on giving taxpayer dollars to international groups that promote or perform abortions abroad. The president released his executive orders on detainee interrogations, closure of the Guantanamo prison, and new ethics rules during the previous week, his first in office.

On Friday, Feb. 27, Mr. Obama announced he would end U.S. combat activities in Iraq in 18 months. This was a much longer combat presence than his antiwar base wanted.

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