Democratic presidential candidate Joe Biden and his running-mate Sen. Kamala Harris (D-Calif.) announced their picks for six additional White House senior staff members on Tuesday morning. Appointed as Deputy Chief of Staff, Bruce Reed is the most notable nominee among the six, not only because of the importance of the position but also the controversy around him. Reed has been criticized by Democratic progressives such as Rep. Alexandria Ocasio-Cortez (D-N.Y.). Ocasio-Cortez, Rep. Ilhan Omar’s (D-Minn.), and Rashida Tlaib (D-Mich.) all signed a petition last month calling for Reed not to be given a role in the new potential Biden administration. The petition called Reed a “deficit hawk” and said that he once worked to “enact massive cuts to Social Security and Medicare, including raising the retirement age.” “Joe Biden and Kamala Harris ran on strong promises to protect and expand Social Security,” said the petition. Reed was then-Vice President Biden’s …