Le Pen has identified the political equivalent of the 100 mile diet.  

Voters have learned to become innately suspicious of politics based on stories about events beyond the horizon of their comprehension.  Where once, they may have trusted the MSM to inform them, increasingly what they are seeing is inconsistent with what the MSM and MSM bound politicians are selling.

The EU has lapsed into a dysfunctional mess of bureaucracy layered atop national and local governments that are now mired in overlapping, conflicting regulation and desperate financial dyke plugging.  There is so much government, draining resources and prescribing policies designed to rob Pierre and Dieter to pay Paulo and Jose, that hardly anyone in the payor zone believes government is capable of serving their interests any more.  

Those voters are looking for someone to address the issues they can see around them.  Brexit, Trump and now Le Pen are recognizing this.  Silver tongued star-gazers are on the way out.