During his confirmation hearing on Tuesday, Jeff Sessions promised that as attorney general he would “revisit” a 2011 Justice Department memo that interpreted the Wire Act of 1961 as applying only to sports betting, which opened the door to state-regulated online gambling. The implication was that Sessions might revert to the department’s earlier position on the statute, which implausibly read it as banning all forms of internet-assisted betting, even those permitted by state law. Although Sessions’ comments set off alarm bells among online poker fans and other supporters of legalization, it’s not clear how serious he is about reversing the…