WASHINGTON (AP) — The Justice Department said Tuesday that Republican lawmakers are engaging in distortions by asserting that Operation Fast and Furious arose from a strategy created by the Obama administration.

In a report following an 18-month probe of the flawed gun-smuggling investigation, Rep. Darrell Issa of California and Sen. Chuck Grassley of Iowa said that the administration shifted the emphasis in fighting Mexican drug cartels from merely seizing firearms to identifying the networks that traffic them.