Neera Tanden, Biden’s nominee to run the Office of Management and Budget, faced scrutiny in her confirmation hearing Tuesday for social media posts attacking Republican lawmakers. Tanden apologized for her remarks and promised to be a nonpartisan figure, the Wall Street Journal noted.

Most of the posts in question came from Tanden’s time as an “impassioned advocate” with the Center for American Progress, a left-leaning think tank. While leading the organization, Tanden prolifically attacked both right-wing and far-left politicians.

The divisive content of the messages, as well as Republicans’ focus...