VOICED: Police step up Sarkozy illegal funding probe

The French President is facing low approval ratings and challenges in implementing economic reforms. He is also dealing with allegations of illegal financing in his 2007 election campaign, with his Labor Minister, Eric Vert, at the center of the scandal. Despite pressure, Vert refuses to resign. Prosecutors have launched an investigation into the campaign fund, focusing on claims that Liliane Bettencourt, France's richest woman, made illegal donations. Her former accountant, Claire Tibu, has made allegations but denies directly implicating the President. The investigation continues as authorities search Bettencourt's financial advisor's home.

What are the current challenges faced by the French President according to the text?

Who is the Labor minister at the center of the scandal?

What allegations were made against Eric Vert regarding the 2007 election campaign?

What was the amount allegedly donated by Liliane Bettencourt to the campaign fund?

What was Claire Tibu's role in the allegations against the president?