St. Patrick's Day at the White House. Obama welcomes Irish PM.
President Obama celebrates St. Patrick's Day with Ireland's Prime Minister Brian Cowen.
The annual White House event is a mix of lighthearted cheer and serious politics.
Cowen comes to the party weighed down by the massive budget cuts he has implemented to address his country's debt.
But he has won some praise for avoiding the kind of debt crisis now facing Greece.
Secretary of State Hillary Rodham Clinton praised the leaders for reaching an agreement in February that prevented a collapse of the Catholic-Protestant power-sharing government.