Sen. Mitt Romney (R-Utah) said in an interview with CNN that he was planning “a much deeper dive” into Judge Ketanji Brown Jackson’s record ahead of the Senate vote to confirm her to the Supreme Court. Romney has long been known for voting much closer to the center than his GOP colleagues, and some Democrats view him as a potential swing-voter in favor of Jackson. Romney said that he has not made the decision whether he will vote for her or not, but he was opposed to her nomination to the D.C. District Circuit Court last year. This time around, he promised to look much further into her track record before making a decision. “I have begun a deeper dive, a much deeper dive than I had during the prior evaluation,” Romney told CNN. “In this case, as well, she’s gone into much more depth talking about her judicial philosophy …