Suddenly, Amy Coney Barrett might not have the votes.

Amy Coney Barrett and Mike Pence (Photo: ERIN SCHAFF / THE NEW YORK TIMES / AP)

September 26 was a festive day for Republicans in Washington. Under overcast skies, President Donald Trump strode to a podium in the White House Rose Garden to introduce Judge Amy Coney Barrett as his nominee to replace the late Supreme Court Justice…