<br /> Former CIA Director John Brennan said on Thursday he would not be silenced by President Trump.<br />Trump revoked the Obama-era official’s security clearance on Wednesday.<br />He said he revoked Brennan’s authorization for making “unfounded and outrageous allegations."<br />Trump later said his decision was connected to Robert Mueller’s probe into Russian interference.<br />“I call it the rigged witch hunt, (it) is a sham. And these people led it. It’s something that had to be done. <br />
