An Act designating the Black Swallowtail as the Commonwealth of Massachusetts official butterfly in honor of William P. Callahan III.

Introduced

In Committee

Floor

Crossed Over

Passed

Enacted

Overview Bill text 1 History Sponsors

No recorded actions.

PASSAGE PROBABILITY

1% Unlikely

Why this number

Stage base Introduced — base rate 3%, measured from MA's completed sessions
Momentum -7 16/100 from the pace of recorded action

A transparent scoring model over stage, momentum, recency, sponsorship and recorded votes — not a trained predictor. Treat it as a way to rank attention, not as a forecast.