White House senior adviser Jared Kushner Jared Corey KushnerAbraham Accords: New hope for peace in Middle East Tenants in Kushner building file lawsuit alleging dangerous living conditions Trump hosts Israel, UAE, Bahrain for historic signing MORE denounced Democratic lawmakers over their efforts to investigate President Trump Donald John TrumpFederal prosecutor speaks out, says Barr 'has brought shame' on Justice Dept. Former Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick MORE, saying that the president's "record of accomplishments is unimpeachable."

"They’ve been trying to impeach the president for the last three years and they’ve been unsuccessful at that," Kushner, the president's son-in-law, told Israel's Channel 13 News in an interview published by Axios. "The best thing going for the president is he hasn’t done anything wrong. And at this point, they’ve investigated him over and over and over again and I think the American people are sick and tired of it."

"The president’s record of accomplishments is unimpeachable," he added. "And he’s going to continue to do the things the American people care about."

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Kushner's comments come weeks into House Democrats' formal impeachment inquiry, which centers on the White House's dealings with Ukraine and allegations that Trump pressured Ukrainian President Volodymyr Zelensky to investigate 2020 presidential candidate Joe Biden Joe BidenFormer Pence aide: White House staffers discussed Trump refusing to leave office Progressive group buys domain name of Trump's No. 1 Supreme Court pick Bloomberg rolls out M ad buy to boost Biden in Florida MORE and his son.

Multiple House committees have heard depositions from several government officials amid the investigation.

Lt. Col. Alexander Vindman, a National Security Council official, testified behind closed doors on Tuesday that he twice reported concerns about the administration's interactions with Ukraine and that he was worried Trump's conduct would undermine U.S. national security, according to a copy of his opening statement obtained by The Hill.

Vindman is the first person who was on Trump's infamous July 25 phone call with Zelensky to testify before Congress.

Kushner appeared to dismiss the the impeachment inquiry, describing it as a "silly game."

"If [the Democrats] want to play silly games we will obviously deal with that in an appropriate manner, but we are not going to let that distract us as an administration," he said, pointing to the White House's successful efforts to lower drug prices and create jobs.

Kushner is among a group of officials involved in the White House's response to the impeachment inquiry, according to CNN. The White House has vowed to refuse to cooperate with the inquiry, with Trump consistently deriding it as a "coup."

As Vindman prepared to testify Tuesday, Trump called the inquiry a "witch hunt," and branded the official a "Never Trumper."

"Supposedly, according to the Corrupt Media, the Ukraine call 'concerned' today’s Never Trumper witness," Tump tweeted. "Was he on the same call that I was? Can’t be possible! Please ask him to read the Transcript of the call. Witch Hunt!"