President Barack ObamaBarack Hussein ObamaHolder: DOJ, FBI should reject Trump's requests The Hill's 12:30 Report — Sponsored by Delta Air Lines — Frenzy over Kennedy retirement rumors | Trump challenges DOJ Asian American and Pacific Islander community will be critical to ensuring successful 2018 elections for Democrats MORE called German Chancellor Angela Merkel on Sunday to discuss efforts to help the Greek economy.

Obama and Merkel spoke while the president was at Hampton University to deliver the school's commencement address.

"President Obama spoke with Chancellor Merkel this morning as part of his ongoing engagement with European leaders with regard to the economic situation there," White House Deputy Press Secretary Bill Burton told a pool reporter.

"They discussed the importance of the members of the European Union taking resolute steps to build confidence in the markets," Burton added.

Germany has been seen as key to assembling a bailout for Greece as it weathers a massive debt crisis that has put it on the brink of default. The prospect of default has roiled European financial markets, and spread globally.

The Euro Zone approved a bailout of roughly $145 billion in U.S. dollars this weekend to assist the Greek economy.