Mailvox: what does Le Pen need to do?

What does Le Pen need to do in the brief time between now and May 7 to win the French election?

To win the French election, Marine Le Pen needs to convince the
anti-EU French Left that national sovereignty is more important
than the precise shape of domestic policy in the next few years.
This will be challenging, since one of the chief attributes of the
Left is its inability to think in the long term.