Has the United States slipped into the Twilight Zone? How else to explain an outbreak of bizarre political behavior, including the Chief Justice of the United States apparently writing opinions on both sides in the ObamaCare case, and now a North Caroline legislator casting the deciding vote legalizing fracking in North Carolina by (she claims) mistake? WRAL.com in Raleigh reports:

State House lawmakers have apparently accidentally legalized fracking in North Carolina, due to a deciding vote one Democrat says was a mistake.

Rep. Becky Carney, D-Mecklenburg, says she did not intend to cast the key vote that overrode the governor's veto of the bill.  

The vote was 72-47, exactly the number needed for an override. Without Carney's vote, the veto would have been sustained. 

Carney characterized her vote as "very accidental."

State law prevents a legislator from changing a vote when that vote would affect the outcome, in order to protect solons from undue pressure being brought.  So Rep. Carney was unable to change her vote when she noticed that she had pushed the wrong button on her desk to vote.

No doubt some on the left will suspect corruption had something to do with it, but incompetence is the more likely explanation.

So what is the Chief Justice's excuse?