The turmoil and uncertainty surrounding the free-falling Action democratique continues.

One week after announcing that he would stay on until the ADQ could find a new leader, Gilles Taillon has made an about face.

He now says he will leave the party immediately -- his successor will be named on Thursday.

Rumours are swirling about the identity of the next leader of the right-leaning party.

One possibility is former reporter Gerard Deltell.

Fall from grace

Taillon, former head of the province's employers' lobby group, was once a star candidate for the ADQ when it surged to official opposition status in 2007 under co-founder and longtime leader, Mario Dumont.

But the party was decimated in a provincial election last December, plummeting to just a handful of seats.

Things went from bad to worse after Dumont quit the party - the race for succession was bitter and very public. Taillon eventually beat rival Eric Caure by just two votes.

But the entire leadership race was thrown into question when it was revealed that one of the voters was actually a broadcaster who had cast his ballot using the name of a deceased African dictator.

Members of Taillon's caucus began abandoning the party until, just 23 days into his leadership, he agreed to quit.

The embattled ADQ leader also said he was contacting the police to complain about irregular party financing, though he has refused to provide details.