Former French President Nicolas Sarkozy at a campaign rally during his unsuccessful bid for re-election in 2012.
It's this campaign and his earlier victorious presidential campaign that are at the heart of investigations.
On Tuesday, Sarkozy was detained for questioning over influence peddling....police are suspicious that he received inside information about an inquiry into alleged irregularities in the 2007 election.
It's the first time in modern French history a former head of state has been held for questioning.
The conservative politician denies all wrongdoing in a string of investigations involving him.
But these developments are the latest blow to hopes for another presidential comeback.
