Keir Starmer is putting the finishing touches to a list of dozens of new peerages aimed at strengthening Labour’s hand in the Lords, with Rachel Reeves’s outgoing chief of staff expected to be among them.

The prime minister is planning to publish his list before Christmas, with a number of other former senior advisers, Labour party staff and former union leaders expected to be on it, the Guardian has been told by multiple sources briefed on the plans.

About 25 new peers are expected to be created, joining the 30 new members of the House of Lords who were on Starmer’s list last December, including the short-lived former Downing Street chief of staff Sue Gray.

The Conservatives are also expected to appoint a handful of new peers. Reform UK is not expected to have any, despite a requ

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