If Bernie's rivals don't hammer the message that he has a long anti-immigration record and is opportunistic in his embrace of this issue, I don't know what they're paying their strategists for https://twitter.com/hunterw/status/1231625365589839874 …
They won't do it because it will make him look good. Trump is already hitting him on his overly *pro* immigration 2020 platform. They're risking enough hitting him on guns