Carter Page files suit for $75M. The Complaint does state a Bivens claim, as well as a claim under the Federal Tort Claims Act and some other theories. It's attached below, makes for a good read
Named defendants
JAMES COMEY
ANDREW McCABE
KEVIN CLINESMITH
PETER STRZOK
LISA PAGE
JOE PIENTKA III
STEPHEN SOMMA
BRIAN J. AUTEN
DEPARTMENT OF JUSTICE,
FEDERAL BUREAU OF INVESTIGATON,
UNITED STATES OF AMERICA,
JOHN DOES 1-10, and
JANE DOES 1-10
The Govt reflexively and quickly moves to substitute the United States for named individual federal employees acting in their official capacities. Would be a great day if Barr told them to "hold off on that for now."