A Republican group defended special counsel Robert Mueller against attacks by President Trump in an ad that aired Wednesday morning during “Fox & Friends” — a show that Trump is said to frequently watch.

The 30-second ad from Republicans for the Rule of Law highlights Mueller’s military service in Vietnam and his service as head of the FBI during the Bush administration.

“Mueller has been trusted by Republicans to put America first,” the ad says.

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It also shows congressional leaders Sen. Mitch McConnell (R-Ky.) and House Speaker Paul Ryan (R-Wis.) supporting the probe into Russian interference in the 2016 presidential election.

“I have a lot of confidence in Bob Mueller,” McConnell says in the ad.

McConnell has said he believes Mueller should not be fired but said Tuesday he doesn’t think the Senate needs to pass legislation to protect the special counsel.

The ad also shows Vice President Pence saying “the special counsel has a job to do.”

It urges viewers to call their representatives and demand they protect the Mueller investigation.

Republicans for Rule of Law was founded by conservative commentator Bill Kristol and GOP members who don’t want to see Mueller fired during his Russia investigation.

Kristol tweeted about the ad on Monday night, taking a dig at Trump’s television habits by airing the spot during the Fox News show the president reportedly watches.

“You (and President Trump) can see our first TV ad–defending the Mueller investigation–on Fox and Friends in DC tomorrow morning.”

I’m honored to be a founding director of Republicans for the Rule of Law. You (and President Trump) can see our first TV ad–defending the Mueller investigation–on Fox and Friends in DC tomorrow morning. But why wait? Take a look at it on our website now.https://t.co/Trxm4Tu1yC

— Bill Kristol (@BillKristol) April 10, 2018

Reports broke on Tuesday that Trump had tried to fire Mueller in December after inaccurate claims that Mueller subpoenaed Deutsche Bank for Trump’s finances.

The White House said Tuesday that Trump “certainly believes” he has the power to fire Mueller after the FBI raided the office and home of his personal attorney, Michael Cohen.

However, legal experts say the authority falls on the Department of Justice official in charge of the probe, Deputy Attorney General Rod Rosenstein.

Trump is reportedly mulling firing Rosenstein over the raid since the deputy attorney general personally signed off on the paperwork approving it.

Republicans and Democrats have united in their support of Mueller and urged the president not to fire Rosenstein.

Sen. Charles Schumer (D-N.Y.) said Tuesday afternoon that Trump firing Rosenstein would spark a “constitutional crisis.”