There's been a lot of talk lately about "The Supreme Court's Libertarian Moment," perhaps mostly though not entirely from Ilya Shapiro. A detailed analysis of the 2013-14 Supreme Court term in the Washington Post provides some evidence for that, if you read to the very end. In an article on the rising number of unanimous decisions this term, Robert Barnes notes at the end:
Criminal cases are often ones where the lines between the court’s liberal and conservative wings are blurred.
“There’s been a lot of talk in progressive circles about how you want to avoid taking cases to this particular Supreme Court,” said Elizabeth Wydra, chief counsel with the liberal Constitutional Accountability Center. “One of the areas we’ve seen the Roberts court taking what might be called liberal positions are areas where there are a liberal-libertarian alliance.” [A point that two of her colleagues had made at length in the Post a few days earlier.]
Noel Francisco, a Washington lawyer and former Scalia clerk who represented challengers in the recess appointments case, said there is the same gravitation on the right.
“I think one of the most interesting phenomenon we’ve seen on the court over the last 30 or 40 years is what I would call the evolution of the conservative instinct,” Francisco said. It no longer means “a thumb on the scale for the government.”
Roger Pilon explored the revival of libertarian legal thought in the Chapman Law Review last year.