Obama just won Pennsylvania.
Philadelphia (CNN) -- A Pennsylvania judge ruled Tuesday that state officials cannot enforce a new voter identification law in next month's presidential election.
The ruling by Commonwealth Court Judge Robert Simpson is expected to be appealed.
Supporters argue that the law signed in March by Republican Gov. Tom Corbett will prevent voter fraud and is upheld by the Constitution.
Opponents contend that the new law will disenfranchise voters, and any implementation should be postponed until after the November 6 presidential election.
The state Supreme Court had given Simpson until Tuesday -- five weeks before the election -- to rule on the matter.
Sisters navigate new Pennsylvania voter ID law
In his ruling, Simpson granted a preliminary injunction that
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