Investigation marks an escalation in Trump administration’s efforts to remove the central bank governor

Lisa Cook filed a lawsuit challenging Trump's effort to oust her.

The DOJ has reportedly opened a criminal mortgage fraud probe into Federal Reserve Governor Lisa Cook, whom Trump has been trying to fire.

Probe follows a lawsuit filed by Cook challenging Trump firing her from the central bank on mortgage fraud allegations.

The US president has fired Cook over the accusations, prompting her to file a lawsuit challenging his effort to oust her.

Investigation marks an escalation in Trump administration’s efforts to remove the central bank governor