Filibuster reform must be via bipartisan cooperation.

Majority Leader Harry Reid, frustrated by abuse of the filibuster, has vowed to change the Senate’s rule on the first day of the new Congress.

If he chooses to invoke the “constitutional option” — the assertion that the Senate can, on the first day of a session, change its rules by a majority vote — he will be heading down a slippery slope that the current president of the Senate, Vice President Biden, once excoriated as an abuse of power by a majority party.