Here are the initial reactions of a range of Liberal Democrats to the departure of seven MPs from Labour (whose policy statement you can read here):
(Dick Newby was National Secretary of the SDP 1983-8 and is now the Liberal Democrat leader in the House of Lords.)
Also worthy of note given how bitter Labour-Liberal Democrat rivalry has been in Liverpool over the decades:
As for how the Lib Dems should react to this, my view is still very much rooted in the lessons we can learn from previous episodes.
One other important thing to note: