No doubt he is. And he'll extract his pound of flesh from the Senators that he believes betrayed him.
So far Nelson, Johnson, Landrieu, Salazar and Byrd have said they will not support a filibuster, so that puts the count right at 39 (i.e. 44 dems-5 no filibuster).
Time for Reid to cave and get on with the vote.
This was announced on Fox 55 Republicans and 2 Dems will be voting to confirm Alito.