Hunter Biden tax trial: Judge rules Hallie Biden will testify with immunity

A California judge has granted immunity for Hallie Biden to testify against Hunter Biden in his upcoming criminal tax trial next month. 

Hallie Biden, the widow of Beau Biden and ex of Hunter Biden, previously indicated to prosecutors that she would be unwilling to testify at the trial beginning Sept. 5 "on the basis of her privilege against self-incrimination," according to a court filing obtained by Fox News. 

Biden is charged with failing to pay $1.4 million in taxes between 2016 and 2019, while also filing false tax returns.