"Fox & Friends" host Brian Kilmeade asked early Thursday why President Trump Donald John TrumpBubba Wallace to be driver of Michael Jordan, Denny Hamlin NASCAR team Graham: GOP will confirm Trump's Supreme Court nominee before the election Southwest Airlines, unions call for six-month extension of government aid MORE doesn't open an investigation into the personal finances of Democratic Reps. Adam Schiff Adam Bennett SchiffChris Matthews ripped for complimenting Trump's 'true presidential behavior' on Ginsburg Trump casts doubt on Ginsburg statement, wonders if it was written by Schiff, Pelosi or Schumer Top Democrats call for DOJ watchdog to probe Barr over possible 2020 election influence MORE (Calif.) and Rep. Maxine Waters Maxine Moore WatersPelosi: House will stay in session until agreement is reached on coronavirus relief Omar invokes father's death from coronavirus in reaction to Woodward book Business groups increasingly worried about death of filibuster MORE (Calif.), questioning how they got "rich."

"Why not investigate Adam Schiff? Why not investigate Maxine Watters? How did they become rich?" Kilmeade asked judicial analyst Andrew Napolitano.

"Because the Democrats control the Congress and they're not going to investigate their own," Napolitano replied.

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"Doesn't the president have an attorney? Why doesn't the president run a private investigation onto Adam Schiff?" Kilmeade asked after some crosstalk.

"Because the president, if he's going to use the power of the government to do anything, has to do it through the [Department of Justice]," Napolitano noted.

Trump and Schiff traded verbal blows on Twitter on Wednesday after the new House Intelligence Committee chairman said he would open an investigation in the president's personal finances and possible ties to Russia.

Schiff stated he would launch an investigation to find out if any of Trump's decisions since becoming president have been compelled by personal financial gain.

“The president’s actions and posture towards Russia during the campaign, transition, and administration have only heightened fears of foreign financial or other leverage over President Trump and underscore the need to determine whether he or those in his administration have acted in service of foreign interests since taking office,” he said in a statement.

Trump said later there is no basis for an investigation.

"He’s just a political hack who’s trying to build a name for himself," the president told reporters at the White House. "It’s just presidential harassment and it’s unfortunate and it really does hurt our country."

Trump reportedly often watches "Fox & Friends" during what has been dubbed "Executive Time" on weekday mornings and has been interviewed on the program on multiple occasions since taking office.