By now the officials behind the $1.9 billion Southwest light rail project must think they’re the star in a slasher movie. Every time they think they’re safe, somebody comes at them with a brand-new axe.

The Star Tribune reports on the latest effort by the Republican-led Minnesota Legislature to kill the rail line — which would connect Minneapolis to the southwest suburbs — which makes for three or four times in the past year:

Blocked transit funding in last year’s state budget. The Metropolitan…