President Donald Trump slammed the leadership of the FBI and Department of Justice on Friday.<br />His remarks precede the possible release of a highly controversial Republican memo.<br />According to CNN, it alleges the FBI abused its surveillance tools to favor Democrats.<br />Trump's tweet sides with Republican lawmakers who view it as evidence of nefarious motives atop the FBI.<br />House Intelligence Chairman Devin Nunes wrote the memo. It was approved for release by the House committee earlier this week. <br />