It’s becoming increasingly more obvious that Matt Gaetz is 1000% screwed.Last week, the antigay congressman’s ex-girlfriend testified before a federal grand jury investigating him for sex crimes.

Now, CBS News reports that she’s officially been granted immunity and is being treated as a potential key witness in the case against him:The woman, who CBS News is not naming to protect her privacy, testified in front of a federal grand jury in Orlando last Wednesday.

She is viewed as a potential key witness, according to two sources familiar with the investigation. One of the sources said she has information related to the investigation of both the sex trafficking and obstruction allegations.In response to this bombshell news, Gaetz’s attorneys issued a statement saying they’ve seen “no credible basis” for a prosecution of their client.Related: Matt Gaetz’s wife praises his generous “gift” giving and, um, awkwardBut CBS News legal analyst Rikki Kleiman points out, “The government does not give immunity blindly.