Why is Domenici "Uncommitted" on the Filibuster?

As an addendum to my last post, I kept digging and I found that the conservative American Enterprise Institute's Norm Ornstein wrote in Roll Call recently Sen. Pete Domenici (R-NM) is one of the "few [Senators who] are uncommitted on the question" of eliminating the filibuster. Why he is uncommitted, I'm not sure, considering his strong publicly-stated opposition to eliminating the filibuster.

On 6/13/94, Domenici came out strong against a plan to end the filibuster in Roll Call newspaper. He said, "There's no chance the U.S. Senate will go along with that."

Where is Domenici's rock-solid opposition now?