PARIS (AP) — The disintegration of France’s political landscape, torn up by the presidential election victory of Emmanuel Macron, is picking up speed by the day.

Marion Marechal-Le Pen, the niece of defeated far-right candidate Marine Le Pen, is quitting politics, depriving their National Front party of one its few real stars. Marine Le Pen tweeted Wednesday her regret at the decision.

Having campaigned together in the presidential election, parties on the other extreme on the far left are divorcing.

From holding power, through outgoing President Francois Hollande and his majority in the outgoing parliament, the Socialist Party is tumbling ever deeper into disarray. The mainstream right is torn between wanting to work with Macron and wanting to clip the new president’s wings.