The Senate on Tuesday voted 56-43 to confirm President Joe Biden’s pick to lead the Department of Homeland Security (DHS), Alejandro Mayorkas. He was approved by the narrowest margin yet for a Biden Cabinet pick. In the days leading up to his confirmation, Mayorkas, 61, faced strong opposition from Republicans who voiced concerns that he is not fit for the role. Mayorkas, the sixth of Biden’s Cabinet picks to receive confirmation by the Senate, becomes the first Latino and immigrant to lead the DHS. He previously served as the deputy secretary of DHS in the Obama administration, and as Director of U.S. Citizenship and Immigration Services (USCIS). As secretary of the sprawling agency, Mayorkas will oversee a 240,000-employee department responsible for border security, immigration enforcement, cybersecurity and disaster readiness and relief, among other missions. Mayorkas will also stand at the center of Biden’s attempts to reverse many Trump-era immigration restrictions. The …