Acting Attorney General Jeffrey Rosen became the head of the Department of Justice on Dec. 24, a day after the departure of former Attorney General William Barr. Rosen’s tenure began at a time of heightened tensions between the White House and the Justice Department over the handling of several matters of crucial interest to President Donald Trump, including prospective investigations into voter fraud, an ongoing inquiry into the financial dealings of former Vice President Joe Biden’s son and the special counsel investigation of Obama administration’s spying on the Trump campaign during the 2016 election. Barr announced his resignation in a letter on Dec. 14 in which he praised Trump for accomplishing what he has in the face of intense partisan interference from within the government. “Your 2016 victory speech in which you reached out to your opponents and called for working together for the benefit of the American people was …