Yesterday St John's Wood tube station was littered with Good Morning leaflets resembling the Lib Dem design but produced by Labour: imitation is the sincerest form of flattery. They featured a "doorstep survey" stating that the by-election "is a straight fight between Labour and the Conservatives", with a bar graph showing Labour just behind the Tories, with support for the Lib Dems as minuscule.
The actual result in both of yesterday's City of Westminster by-elections was that the Tories held the seats (not a surprise on past figures), the Lib Dems were second and Labour were a clear third. The Lib Dem share of the vote increased: the Labour and Tory shares fell.
The Labour Good Morning leaflets also repeated that Lib Dems propose to "get rid of free travel for over 60s", which is, as is well documented, rubbish. This story is deliberately targeted at pensioners on low incomes - among society's most vulnerable members. To cause them anxiety by such means is not only deceit but also heartless, whether the aim is to win or, as here, merely to prevent meltdown in a seat where Labour never had any serious expectation of success.
To me, tactics like these are unacceptable from any quarter.