If the Democrats win the House this fall, they can investigate the charges against him, should he be confirmed... Impeachment proceedings in the House are investigative in nature and come with a full panoply of quasi-judicial powers, including aids to investigations, such as the power to subpoena witnesses to compel them to appear and testify (subject, of course, to constitutional privileges, if applicable, such as the Fifth Amendment’s guarantee against self-incrimination)... If a simple majority of the House decided to proceed with impeachment, the House Judiciary Committee would be empowered to conduct a thorough and careful investigation of the sexual misconduct allegations that Professor Christine Blasey Ford has made against Mr. Kavanaugh involving a drunken sexual assault when both were high school students in suburban Washington, D.C... Nor should the Democrats wait to formally take control of the House in January. The House Democratic leadership should pledge now that if they win a majority, they will conduct an impeachment investigation, to get to the truth. Doing so today would make clear to the Senate Republicans that if they rush to judgment, in the absence of a full and fair investigation, there will still be an investigation... Of course, even if the House impeached Mr. Kavanaugh, it would still take a two-thirds majority in the Senate to convict and remove him from the Court. But the Senate vote would surely have at least something to do with the merits of the House’s case: If a full and fair investigation shows that Mr. Kavanaugh has lied regarding the incident — he has denied it categorically and says nothing even remotely like it ever occurred — Republican senators may find it hard to vote “no” in the #metoo era. It would be a terrible blow to the legitimacy of the Supreme Court, of course, but this is the risk that Senators McConnell and Grassley seem willing to take... Moreover, an impeachment investigation could also encompass allegations that Mr. Kavanaugh has committed perjury before the Senate, twice, related to his work on the nomination of District Judge Charles Pickering to be a judge on the Court of Appeals for the Fifth Circuit. Under oath, both in 2006 and in 2018, he said he had no involvement with the White House strategy sessions associated with Judge Pickering’s nominations. Subsequently released emails, involving these sessions, suggest that these answers were at best misleading and at worst totally false... Attending a strategy session as a White House staffer is not a crime. Lying under oath to the Senate Judiciary Committee, on the other hand, is. Perjury would be a perfectly justifiable, and constitutional, basis for impeachment... Federal judges, including members of the Supreme Court, should not be impeached based on their judicial rulings or philosophy... proceedings should be strictly limited to questions associated with his alleged intentional and deliberate efforts to mislead the Senate about his character and fitness to serve... We do not know the truth of the troubling allegations against Judge Kavanaugh. But, before someone is confirmed to the Supreme Court, good faith efforts to discover the truth should be made. And if the Senate won’t conduct a credible investigation now, the House should offer its assistance next year.