President Trump on Tuesday called out the FBI for saying it lost texts between two officials who could be the key to showing that the special counsel's team investigating Trump was biased against him.

The Justice Department has said it's new reviewing why five months of text messages between Peter Strzok and Lisa Page, former FBI agents and lawyers on special counsel Robert Mueller's team, went missing. The two were having an affair, and some of the messages seen between the two show an anti-Trump bias.

"In one of the biggest stories in a long time, the FBI now says it is missing five months worth of lovers Strzok-Page texts, perhaps 50,000, and all in prime time. Wow!" Trump tweeted Tuesday morning.

In one of the biggest stories in a long time, the FBI now says it is missing five months worth of lovers Strzok-Page texts, perhaps 50,000, and all in prime time. Wow! — Donald J. Trump (@realDonaldTrump) January 23, 2018



Strzok and Page both took part in the FBI's probe of Hillary Clinton's email server. They also exchanged anti-Trump, pro-Clinton texts on their phones in addition to having an extramarital affair during their work together.

Despite Trump's tweet, the Justice Department has said it found more than 50,000 texts between the two officials, and has not specified how many others have been lost.

Page left Mueller's team in July 2017 and Strzok was removed last summer after officials learned he had sent anti-Trump messages.

Justice officials are now investigating why the messages were not preserved and if any foul play took place to destroy them.