The Financial Post reports in its Thursday edition that Goldman Sachs may be about to get another friend in Washington. An Associated Press dispatch to the Post says that Jay Clayton, a well-connected Wall Street lawyer who is President Donald Trump's pick to lead the Securities and Exchange Commission, is sure to face sharp questions from Democrats at his confirmation hearing Thursday over his years of work for Goldman and other financial giants. Despite deriding Wall Street's influence in Washington, Mr. Trump has already drawn upon Goldman alumni for key financial posts in his administration, notably for Treasury Secretary, Steven Mnuchin, and the head of the National Economic Council, Gary Cohn. As SEC chairman, Mr. Clayton would be in charge of, among other things, protecting investors from wrongdoing on Wall Street. For critics, the big question will be: How vigorous a regulator would Mr. Clayton prove to be? Mr. Clayton would take over the leadership of the SEC with a Republican majority among its eventual five members. In line with Mr. Trump's pledge to ease many rules that flowed from the reformist Dodd-Frank law, a Clayton-led SEC would be expected to take a comparatively loose approach to regulation.