Five things to watch for during tonight’s debate

1) Can Natalie Bennett do enough to spark another Green surge?
After Natalie Bennett’s infamous ‘brain fade’ the Green surge faded away. The media stopped giving the Greens the attention they had been and without the oxygen of publicity, support for the party fell away; this morning’s YouGov poll has the Greens on 4%, their lowest score since October. But tonight offers Bennett a chance to get her party back into the election frame. If she can deliver a few good answers and the odd zinger, that would be enough to get the media—and, then, the voters—to take a second look at her and the Greens.

2) Will Leanne Wood attack Miliband over the state of the NHS in Labour-run Wales?
The Tories are convinced that they can use Wales and the fact that the NHS is performing poorly there under the Labour-run administration, which has cuts its funding, to blunt Labour’s attacks on the NHS.