Thanks to David Lammy’s skill in preparing the ground, today’s Commons debate on controversial plans to restrict trial by jury will clear its first parliamentary hurdle with ease – and postpone any impending leadership challenge, says John Rentoul T he rebellion has been postponed. Karl Turner, the Labour MP leading the resistance to David Lammy’s plan to restrict the right to jury trial , came out with his hands up this morning. “I’ll be trying to persuade colleagues to abstain at this stage,