Half of Americans — including 42% of Democrats — say they'd support mass deportations of undocumented immigrants, according to a new Axios Vibes survey by The Harris Poll.

• And 30% of Democrats — as well as 46% of Republicans — now say they'd end birthright citizenship, something guaranteed under the 14th Amendment of the Constitution. ...

 "I was surprised at the public support for large-scale deportations," said Mark Penn, chairman of The Harris Poll and a former pollster for President Clinton.

• "I think they're just sending a message to politicians: 'Get this under control,' " he said, calling it a warning to Biden that "efforts to shift responsibility for the issue to Trump are not going to work."