[3] After joining the Union of Right-Wing Forces (UFD), Sandu became the president of its Prahova County chapter in 1999.
From 2003 to 2004, he was a supplementary member of the PNL's executive bureau and vice president of its Prahova County chapter.
[7] His priorities as minister include rapidly accessing European Union Structural Funds, increasing interoperability among government agencies, developing the IT and broadband sectors, and digital television transition.
[8] In October 2009, he became interim Small and Medium Enterprises Minister following the resignation of his PSD cabinet colleagues, including Constantin Niță, the previous occupant of that ministry, holding the portfolio until December.
In March 2016, the High Court of Cassation and Justice sentenced him to two years' imprisonment and asset forfeiture of €2.2 million.