Jared Kushner and Ivanka Trump are possibly aiming to leave the White House by mid-2018, according to a report in Vanity Fair, claiming the couple is unhappy in Washington, D.C.

Sources close to U.S. President Donald Trump's daughter and son-in-law, who double as his senior advisers, note that the couple has pointed out that the average tenure of a West Wing aide is 18 months.

The report claims the couple misses living in New York, according to a friend, adding that Washington "punctures their self-esteem on a daily basis."

The distate is mutual, according to the report. A Washington insider told Vanity Fair that "Kushner and Ivanka don't have the necessary self-awareness — don't understand how to behave when you roll into Washington as the creature of someone else."

"What is off-putting about them is they do not grasp their essential irrelevance," the source told Vanity Fair. "They think they are special." Some West Wing advisers even refer to Ivanka as "princess royal" behind her back.

A Republican donor told the magazine that they will leave “when they decide it’s more important to protect their own and their children’s reputations than it is to defend their indefensible father’s."

Kushner and Trump were largely expected to be a moderating influence on the president, but he has pushed forward on issues such as climate change and bans on refugees and transgender people serving in the military despite their stances.