Silver wrote that the president stepped on Harris' "message" after he abandoned his reelection bid.
The incoming president doesn't seem to care if his nominees can't win Senate confirmation.
The election result marks the second time a Democratic woman has lost to Donald Trump within eight years.
Biden’s choice not to step aside denied Democrats a chance for renewal — and paved the way for Trump’s return.
Politicians on all sides of the debate believe momentum is now with those opposed to the reform.
Keir Starmer's spokeswoman said "we understand the strength of feeling on this issue".
The Reform UK leader has offered to be a "bridge" between the UK and the incoming Trump administration.