In recent months, McCabe has been harshly criticised by congressional Republicans who challenge the FBI's rationale for opening the Russian Federation probe back in July 2016.
FBI Deputy Director Andrew McCabe is leaving his position ahead of a previously planned retirement this spring.
He will remain on leave with the top USA domestic law enforcement agency until his retirement date, the source said, speaking on condition of anonymity because a public announcement has not yet been made.
Press Secretary Sarah Huckabee Sanders said: "The President wasn't part of this decision-making process".
The story, which came out during the 2016 campaign, colored Trump's view of McCabe and led him, according to The Washington Post, to ask McCabe who he voted for in the 2016 election.
When asked on January 25 to confirm or deny the report, Sanders said: "The president and Andrew McCabe have had limited and pretty non-substantive conversations. I wasn't there. There are widespread reports of his retirement". No charges were brought against Clinton.
McCabe has been lashed out at by Republican lawmakers alleging systemic bias against the president the top tier of the Federal Bureau of Investigation. By that time, his wife's campaign was over and his involvement was not seen as a conflict.
South Korea hospital hit by deadly fire
Miryang Fire Station chief Choi Man-Woo apologised for "failing to rescue each and every one" of the patients caught in the fire. Song said the hospital did not have a sprinkler system and was not large enough to require one under South Korean law.
He questioned how Mr McCabe could be in charge of the investigation into Mrs Clinton when his wife had received donations from "Clinton puppets".
In December, he tweeted that McCabe was "racing the clock to retire with full benefits".
The Deputy Director has served at the Bureau since 1996, working under former directors Robert Mueller and James Comey.
The US leader has repeatedly called the allegations "fake news" and claimed the FBI was biased in pursuing the investigation. In December, McCabe was grilled behind closed doors by lawmakers on several of those panels for hours.
"He had enough of being undermined and criticized", this source said.
The Justice Department's inspector general is still conducting his own review into the FBI's handling of the Clinton investigation. His role supervising the email investigation has come under renewed scrutiny.
Strzok and Page used words like "idiot" and "loathsome human" to describe Trump during the campaign. Mueller removed Strzok from his team after learning of the texts last summer, and he was reassigned to another post.