President Trump's hammering on the FBI — and green-lighting yesterday of the Russia memo's release over Bureau objections — is having a profound effect:

A SurveyMonkey poll for Axios finds that not even 40% of Republicans approve of America's main federal law enforcement agency — a stunning turn for the law-and-order party.

Expand chart Data: SurveyMonkey poll conducted Feb. 1 to 2, 2018. Poll Methodology; Chart: Axios Visuals

Why it matters: Trump, who earlier turned a huge swath of Republicans toward more favorable opinions of Russia, has now turned his party against his own FBI.

The numbers: FBI approval in the SurveyMonkey Poll, taken over the past two days, is 64% among Democrats and just 38% among Republicans. Unfavorable opinion of the FBI: 47% in the GOP; 14% among Ds.

FBI approval in the SurveyMonkey Poll, taken over the past two days, is 64% among Democrats and just 38% among Republicans. Unfavorable opinion of the FBI: 47% in the GOP; 14% among Ds. As you see below, overall opinion of the FBI fell over the past year in the two polls we compared, likely driven entirely by falling approval from Rs.

Be smart: The stark new Republican skepticism of the FBI means that Trump has succeeded in preemptively undermining the findings of special counsel Bob Mueller.

Many Republicans will now see Mueller's report or recommendations as a political document, and the conservative media will portray it that way.

will now see Mueller's report or recommendations as a political document, and the conservative media will portray it that way. It's the great muddying we have been telling you about since December.

great muddying we have been telling you about since December. This is a massive swing from the initial bipartisan accolades for Mueller.

from the initial bipartisan accolades for Mueller. When the special counsel was named last May, Newt Gingrich tweeted: "Robert Mueller is superb choice to be special counsel. His reputation is impeccable for honesty and integrity. Media should now calm down."