nino_savatte
No pasaran!
No, it isn't - the LRC as a body was never in the Liberal party so couldn't "break from" it. When it was founded (in 1900), Hardie said it aimed to form "a distinct Labour group in Parliament, who shall have their own whips, and agree upon their policy.."
Some individual Lib-Lab MPs might have come over in the following years, but the Labour block going into the 1906 election fought it independently (albeit with some non-aggression agreements),
IIRC, the LRC originally took the Liberal whip in the Commons.

