ABC News is reporting that John Edwards is seriously considering an endorsement of Senator Hillary Clinton. He met with Clinton secretly recently and was supposed to meet with Obama on Monday but that meeting was cancelled at the last minute.

As he weighs a possible endorsement in the Democratic race, former Sen. John Edwards is as split as the party he once hoped to lead — and is seriously considering supporting Sen. Hillary Rodham Clinton, despite the sharp criticism he leveled at her on the campaign trail, according to former aides and advisers.

n deciding between his one-time rivals, Edwards appears deeply divided. Several former advisers likened his thought process to a heart-versus-head split — with his heart favoring Sen. Barack Obama’s strong message of change, and his head attracted to Clinton’s tested nature and commitment to tough fights.

Though he sometimes aligned himself with Obama — and against Clinton — as a candidate, several Edwards campaign insiders say the former senator began to sour on Obama toward the end of his own campaign, and ultimately left the race questioning whether Obama had the toughness needed to prevail in a presidential race.