If the Supreme Court nomination of Judge Brett Kavanaugh comes down to public opinion, a survey released Thursday suggests he may weather the sexual assault allegations.

The Morning Consult/Politico poll, which has a margin of error of plus or minus 2 percentage points, traces a partisan divide that existed long before California professor Christine Blasey Ford accused Kavanaugh of trying to take her clothes off at a high school party in the 1980s, when they were both teenagers.

Overall, 38 percent of respondents said they found the allegation credible, while 42 percent found them not credible. Among Democrats, 65 percent found the allegation credible, while only 13 percent of Republicans agree.

There is a gender gap — but only a small one. By a margin of 45 percent to 37 percent, men find the allegation not credible. The margin among women was 40 percent to 38 percent.

The controversy and hyperbolic attacks by Democratic senators even before Ford’s allegation became public do seem to have taken a toll, however. Voters favored confirmation by a single percentage point — 34 percent to 33 percent. That is the smallest margin since Morning Consult started asking the question after President Donald Trump announced the nomination on July 9.

Support among Republican voters has dropped 7 points since mid-July, while opposition among Democrats has grown by 8 points. At the same time, independents now are split 31 percent to 25 percent against confirmation — a 16-point shift against him.

“It will be valuable to see both sides tell their stories on Monday.”

Sen. Dianne Feinstein (D-Calif.) announced Friday that she had received information of a possible crime involving Kavanaugh to the FBI but did not divulge details. A Morning Consult poll that already was in the field at the time showed a 4-point margin in favor of Kavanaugh. That was down a point from a poll taken the previous week.

Carrie Severino, chief counsel and policy director of the Judicial Crisis Network, said she hopes Ford agrees to testify before the Senate Judiciary Committee and that Kavanaugh be afforded a chance to rebut the allegations under oath.

“It will be valuable to see both sides tell their stories on Monday,” said Severino, whose organization has spent millions of dollars promoting Kavanaugh’s nomination.

Kavanaugh, a judge on the U.S. Court of Appeals for the District of Columbia Circuit, had appeared to be on track for a close but successful confirmation vote when Feinstein made public allegations that she reportedly had received in July. Then on Sunday, Ford gave an interview to The Washington Post, identifying herself as the accuser. She said a teenage, drunken Kavanaugh pinned her to a bed when both were in high school and tried to pull off her clothes.

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Kavanaugh has steadfastly denied the allegations.

After initially insisting on an FBI investigation before any testimony by Ford, her attorneys on Thursday indicated that she would be willing to testify as long as Republican senators assured her a fair hearing.

Severino said the call for an FBI probe — which Democrats echoed — is a smokescreen.

Related: Kavanaugh’s Sexual Assault Accuser Would Testify on Her Own Terms

In a series of tweets on Thursday, the Senate Judiciary Committee revealed that it has been investigating Ford’s claims.

That includes having committee staff interview Kavanaugh under penalty of perjury and obtaining a sworn statement from Mark Judge, a friend of Kavanaugh’s. Ford claims Judge was in the room during the alleged incident; Judge has denied it.

Judiciary Committee Democrats declined invitations to participate in the investigation, according to the tweets.

“What that shows to me is that they are not serious,” Severino said. “They have completely abandoned it in favor of using it as a talking point.”