Its interesting how we have all been told repeatedly that LePen's vote is "rock solid" and that her voters are very unlikely to change their minds...and yet she has steadily lost ground over the last few weeks from high 20s to low 20s...i guess her vote isn't so solid after all!
Le Pen's vote IS solid. She's polling a lower *share* of the vote b/c a few weeks ago left-wing voters were saying they weren't going to turnout and now more are saying they will.
Just look at Ifop tracking. At the end of March 62% of respondents said they intend to vote, now 70% intend to.