Obama Names McDonough White House Chief of Staff

Jan. 25 (Bloomberg) -- President Barack Obama announces the appointment of Denis McDonough, a longtime aide and deputy national security adviser, as his chief of staff. Obama speaks at a press conference at the White House. (Source: Bloomberg)
Rick Perry Lays Down a Challenge to Donald Trump
30:33 - On "With All Due Respect," Mark Halperin and John Heilemann discuss Rick Perry’s response to Donald trump’s remarks that the former Texas governor doesn’t belong on the main debate stage.
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