Warnings against the dangers of globalization and terrorism and efforts to portray rival Emmanuel Macron as the establishment candidate will be at the heart of Marine Le Pen's campaign for the May 7 French election runoff.

While very much aware that opinion polls give Le Pen no chance of winning, the National Front (FN) hit hard on those themes right at the start of the between-the-two-round campaign, seeking to attract disgruntled far-leftists and right-wingers.

A one-on-one against an ex-banker backed by politicians of all stripes wanting to form a dam against the FN gives Le Pen the perfect opportunity to boost her anti-establishment appeal, even if pollsters say that is not enough for her to win.