Deputy AG Under Bush 'Disgusted' by Republican Senators Not Calling Out Trump's 'Horrendous Behavior,' Hiding Under Rocks

Over a dozen prominent conservative lawyers, including the former deputy attorney general under President George H.W. Bush, released a statement on Thursday morning calling for an impeachment probe into President Donald Trump.

"I am disgusted by the conduct of Republican senators who pose as reputable people, but shamelessly hide under rocks instead of calling out the president's horrendous behavior as the gross misconduct that they know it to be," Don Ayer, who served in both the Reagan and Bush administrations, told The Washington Post before the letter was released.

The letter, drafted by the group Checks and Balances, is intended to add conservative support for the impeachment, Stuart Gerson, who worked in the Bush administration, told the Post.

"We believe the acts revealed publicly over the past several weeks are fundamentally incompatible with the president's oath of office, his duties as commander in chief, and his constitutional obligation to 'take care that the laws be faithfully executed,'" the statement said.

Few Republicans have spoken out to criticize Trump's July 25 call with Ukrainian President Volodymyr Zelensky. Democrats have said that Trump sought to arrange a quid pro quo with Zelensky. Texts between American and Ukrainian officials have bolstered concerns about Trump using foreign policy for personal benefit.

Still, Trump and his allies have fervently denied that any misconduct took place. And the White House effectively declared war on the impeachment investigation, sending a letter to House leaders saying the inquiry is "constitutionally invalid and a violation of due process."

George Conway, the outspoken critic of Trump who helped create Checks and Balances last year, harshly rebuked the White House's actions on Wednesday.

"This was trash," Conway, who is the husband of White House counselor Kellyanne Conway, said about the White House letter while speaking with Preet Bharara, the former US Attorney General for the Southern District of New York.

Republicans have sought to shift attention to former Vice President Joe Biden, who they have accused of misconduct while in office in the administration of former President Barack Obama. However, GOP members have not produced evidence to back their claims.

On Wednesday, Vice President Mike Pence continued to divert the focus while speaking with CNN about remarks he made during a 2016 vice presidential debate where he criticized Hillary Clinton.

"Foreign donors, and certainly foreign governments, cannot participate in the American political process," he said. "But the Clintons figured out a way to create a foundation where foreign governments and foreign donors could donate millions of dollars."

When asked Wednesday whether he stood by those remarks, Pence said he did.

"I think that's why President Trump is so concerned about a foreign interference in our election in Ukraine," he told CNN before speaking about Biden.

A Fox News poll released on Wednesday night found that 51 percent of voters want Trump impeached and removed from office, while 4 percent want the president impeached but not removed.

President Donald Trump listens to a question from a reporter at an event for the signing of two executive orders on October 9. Win McNamee/Getty Images