1/6Greek Prime Minister Antonis Samaras reacts in parliament during the last round of a presidential vote in Athens, Dec. 29, 2014.
2/6Alexis Tsipras, opposition leader and head of radical leftist Syriza party, and his party's lawmakers applaud after the last round of a presidential vote in Athens, Dec. 29, 2014.
3/6Greek lawmakers attend the third round of voting to elect a new Greek president at the parliament in Athens, Dec. 29, 2014.
4/6The last of 300 lawmakers departs from the main parliament hall after the last round of a presidential vote in Athens, Dec. 29, 2014.
5/6Alexis Tsipras, opposition leader and head of radical leftist Syriza party, talks to reporters outside the parliament building after the last round of presidential voting, Athens, Dec. 29, 2014.
6/6Greece was forced to call early national elections on Monday, stoking financial concerns as investors worry the main opposition party will win and renege on the country's bailout deal. In this photo, the Greek flag waves outside the stock exchange in Athens, Greece, Dec. 29, 2014.
