If Obama can do it then why can't Haiti's Preval?

The heroic and courageous people of Cite Soleil once again took the lead by holding a press conference on Sunday, February 7, 2010 in front of the monument of the Haitian constitution. While denouncing the corruption surrounding the distribution of aid following the massive earthquake that rocked Haiti on January 12, their central message was to ask that former president Jean-Berrtand Aristide be allowed to return to participate in reconstruction. They asked a very simple but poignant question, if Obama could reach across party lines to invite Clinton and Bush to work for Haiti during this crisis, then why can't Preval do the same by inviting Aristide to return?