Biden endorses Dan Koh in Massachusetts Democratic primary

Former President Joe Biden has endorsed Dan Koh in the Democratic primary for Massachusetts' 6th Congressional District, an open seat as Rep. Seth Moulton runs for the Senate. In a video message, Biden said Koh would be a strong member of Congress and argued that policies he worked on with Koh were now at risk under the current administration. Koh responded that he was honored by the endorsement. Koh previously served in several roles during Biden's White House tenure. Former Vice President Kamala Harris had already endorsed him last year, and Koh previously narrowly lost a Democratic primary in 2018.