"Senate confirmation processes and financial disclosures exist to ensure that qualified individuals are appointed and carry out their official duties with integrity. Kushner is not an exception."

A government watchdog on Wednesday filed a lawsuit aimed at blocking Jared Kushner from serving as a top American foreign policy official while lacking confirmation from the US Senate.

In a complaint filed with the US District Court for the District of Columbia, Citizens for Responsibility and Ethics in Washington (CREW) alleged that Kushner, who is President Donald Trump's son-in-law, is engaged in "unlawful exercise of government power."

Even though Kushner has been given the role of an informal "envoy," the lawsuit contends that he has been tasked with major responsibilities, such as negotiating an end to Russia's war against Ukraine, that under the Constitution should require Senate confirmation.

"Kushner is one of President Trump’s go-to foreign policy negotiators," the complaint explains. "He represents the United States in the highest profile global conflicts... He negotiates directly with foreign leaders. He fills a crucial and continuing role in shaping and implementing the country’s foreign policy during President Trump’s second term."

Even as Kushner oversees such highly consequential diplomatic efforts, the lawsuit continues, he is still working as a private businessman operating an investment firm that has received billions of dollars in investments from the sovereign wealth funds of Saudi Arabia, Qatar, and the United Arab Emirates.

"The interplay and overlap between his government role and private business interests present a heightened risk of financial conflicts of interest," the complaint says. "Nonetheless, Kushner continues to exercise significant government power while circumventing the very protections put in place to guard against such conflicts."

Kushner has also been appointed in a manner that has helped him completely evade "transparency and conflict-of-interest obligations, including the filing of public financial disclosures during the appointment process," the lawsuit says.

The complaint urges the court to order Kushner to file financial disclosures and, if it finds him in violation of the US Constitution's appointments clause, bar him from continued government service.

CREW president Donald K. Sherman said the lawsuit is necessary to ensure that Kushner is not using US foreign policy as a vehicle for self-enrichment.

"Senate confirmation processes and financial disclosures exist to ensure that qualified individuals are appointed and carry out their official duties with integrity," Sherman explained. "Kushner is not an exception. He cannot simply opt out and expect the public to simply take him at his word.”