Soon after he was elected leader of Portugal's center-left Socialist Party in 1992, Antonio Guterres added a red rose motif to the clenched, raised fist which was the party's traditional symbol.

It was a political re-branding that also captured the softer, kinder image of Guterres. And it paid dividends: after a decade out of power, the Socialists won a 1995 election and went into government with Guterres as their prime minister.

Guterres has now been tapped to succeed Ban Ki-moon as the next U.N. secretary-general. The U.N. Security Council will meet Thursday morning to formally approve Guterres and recommend his candidacy to the 193-member General Assembly, which must give final approval.

Guterres made his name in the 1990s as one of a new European generation of modernizing Socialists that included British Prime Minister Tony Blair.... Read More: Fox News