US President Barack Obama on Wednesday separately called European Council President Herman Van Rompuy and Mexican President Felipe Calderon to discuss the ongoing eurozone crisis and the upcoming G20 summit, the White House said in a statement.

Van Rompuy agreed on the "importance of steps to strengthen the resilience of the Eurozone and growth in Europe and globally," White House said in the lead-up to the G20 summit due to be held in Los Cabos, Mexico, on June 18-19.

Calderon discussed the agenda of the Mexican Presidency of the G20, said the statement, adding that in both calls, leaders agreed to work closely together toward a successful summit.

The upcoming G20 summit is expected to pursue a broad agenda, ranging from the ongoing eurozone crisis, financial regulation to green growth.

Haunted by domestic campaign pressure, analysts believe that Obama will probably utilize the venue in Los Cabos to press others, particularly the Europeans, to do more, for fear that the troubles in Europe will further drag down growth in America and ultimately affecting his election.