The Massachusetts Senate voted unanimously Jan. 4 to support proposed “Blue Envelope” legislation to improve interactions between police officers and people with autism spectrum disorder.

Yes, it’s possible, and here’s what would happen But the way Pennsylvania counts its votes could lead to a blue mirage, a red mirage, or both — at different times in the evening.

There was also a blue shift in 2016, but it was not decisive. As CNN’s Marshall Cohen wrote, when Hillary Clinton offered her concession, she was still behind in the popular vote.