Mass_Pincup
Banned
Mr Valls will face other contenders in the Socialist primary next month.
If successful, he will be set to face Francois Fillon and Marine Le Pen in the first round of the presidential election in April.
Current polling suggest that Ms Le Pen, leader of the far-right Front National, could come in the top two in the first round, but would be likely to lose to the centre-right Mr Fillon in the second.
Analysts say Mr Valls may be damaged by his close association with Mr Hollande, France's least popular leader in recent history.
However, he used Monday's speech to call on the left to rally behind him - and against the threat of the far right.
"My candidacy is that of conciliation," Mr Valls promised.
http://www.bbc.com/news/world-europe-38215328
For those who don't know him:
Like Mr Sarkozy when he was interior minister, Mr Valls became identified with expulsions of jobless Roma (foreign Gypsies) living in makeshift camps on the margins of French cities. He was also quick to visit crime scenes - "a very Sarkozy-like habit", according to Europe 1 radio.
This Sarkozy comparison, Mr Valls once said, "doesn't bother me if it refers to his energy and combative spirit
His tough policies can be seen running back through his career in Socialist politics, which began at the age of 17, even before he had obtained his French citizenship.
As mayor from 2001 to 2012 of one of France's poorest towns, Evry in the southern suburbs of Paris, he campaigned against halal supermarkets in the town, arguing that they were divisive.
Dismissed by the Socialist left as a social democrat like Britain's former Prime Minister Tony Blair, he won just 6% of the vote at the Socialist presidential primaries in 2011, trailing Mr Montebourg who took 17%.
The kind of anti-globalisation advocated by Mr Montebourg was an "ideological simplification which nurtures fears", Mr Valls argued at the time.
Having the two in government together was never going to be easy.
http://www.bbc.com/news/world-europe-26820902
Expect a lot of backtracking from his "islamophobia is just a trojan horse from the salafists" kind of talk he used to spew before. He's already saying that his candidacy is one of reconciliation and that he's had enough of stigmatising our muslims compatriots.
Lock if old.