Prime Minister of Greece

Greek Prime Minister Alexis Tsipras (r) welcomes the Estonian President Kersti Kaljulaid at the Maximos Mansion before their meeting in Athens, on Friday. Kaljulaid is in Greece on a two-day official visit. [Thanassis Stavrakis/AP]

A close look at the political trajectory of several Greek prime ministers reveals certain unmistakable patterns: Regardless of political affiliation, they have all displayed the same signs of political decay.

Greek Prime Minister Alexis Tsipras (l) welcomes the President of Ireland, Michael D. Higgins (r) for a meeting at the Maximos Mansion in Athens,on Thursday. The Irish President is on a two-day official visit to Greece. [EPA]

Greek Prime Minister Alexis Tsipras on Monday threw down the gauntlet to the country's bankers, telling them to crack down on big-time debtors and increase funding to young people.

Greek Prime Minister Alexis Tsipras has said that Turkish respect for international law and countries' territorial integrity is a precondition for a solid bilateral relationship between the two Aegean neighbors.

"Differences have always existed and [they exist] today," Tsipras said during a meeting with Turkish President Recep Tayyip Erdogan at the Maximos Mansion on Thursday.

Greek Prime Minister Alexis Tsipras (r) welcomes Polish President Andrzej Duda (l) during their meeting, in Athens, on Monday. The Polish President is on a two-day visit to Athens.  [Orestis Panagiotou/EPA]

A meeting at the White House is always a significant event. However, the United States is more than Washington, the capital, where Greek Prime Minister Alexis Tsipras is set to arrive on Monday. There are other major cities, such as Chicago, which Tsipras is also scheduled to visit - and with good reason.

Greek Prime Minister Alexis Tsipras is due to travel to the United States on October 17 for a visit where he will probably see for himself how much the Greek diaspora's influence in Washington has waned.

Greek Prime Minister Alexis Tsipras welcomes Dutch Finance Minister and Eurogroup President Jeroen Dijsselbloem at his office in the Maximos Mansion in Athens, Monday. [Alkis Konstantinidis/Reuters]

Greek Prime Minister Alexis Tsipras said his government's re-election in September 2015 was tantamount to voter approval of a package of new measures agreed with the country's creditors.