GOP senators on Wednesday lashed out at individuals who made "vulgar" calls to Sen. Susan Collins Susan Margaret CollinsClub for Growth to spend million in ads for Trump Supreme Court nominee Maryland's GOP governor says Republicans shouldn't rush SCOTUS vote before election The Hill's Morning Report - Sponsored by Facebook - GOP closes ranks to fill SCOTUS vacancy by November MORE (R-Maine) in recent days urging her to reject Brett Kavanaugh's nomination to the Supreme Court.

Sen. Ted Cruz Rafael (Ted) Edward CruzCruz blocks amended resolution honoring Ginsburg over language about her dying wish Trump argues full Supreme Court needed to settle potential election disputes Press: Notorious RBG vs Notorious GOP MORE (R-Texas) blamed the "far Left" in a tweet for a "harassment campaign" against the moderate Maine senator, calling the comments toward Collins and her staff "truly shameful" and an example of "the desperation of the radicals to try to stop" Kavanaugh's confirmation.

Sen. John Cornyn John CornynThe Hill's Campaign Report: GOP set to ask SCOTUS to limit mail-in voting Liberal super PAC launches ads targeting vulnerable GOP senators over SCOTUS fight Senate GOP faces pivotal moment on pick for Supreme Court MORE (Texas), the second-ranking Republican in the Senate, tweeted that Collins had been subject to "false, nasty, vulgar, personal, uncivil verbal abuse."

The harassment campaign from the far Left against Susan Collins—including threats of sexual violence against her staffers and potential illegal bribery—is truly shameful, and shows the desperation of the radicals to try to stop the confirmation of Judge Kavanaugh. It won’t work. https://t.co/eZ60ppIr0j — Ted Cruz (@tedcruz) September 12, 2018

No. It is the false, nasty, vulgar, personal, uncivil verbal abuse of an honorable and diligent public servant like Senator Collins. https://t.co/9EBjhhgqP6 — Senator John Cornyn (@JohnCornyn) September 12, 2018

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Sen. Orrin Hatch Orrin Grant HatchBottom line Bottom line Senate GOP divided over whether they'd fill Supreme Court vacancy MORE (R-Utah) called on Democrats to condemn the messages directed at Collins.

"Attempting to bribe Senator Collins to vote against Judge Kavanaugh and threatening sexual violence against staffers if she votes for him is absolutely disgusting," Hatch's office tweeted.

Every Democrat should be condemning these antics in Maine— attempting to bribe Senator Collins to vote against Judge Kavanaugh and threatening sexual violence against staffers if she votes for him is absolutely disgusting. https://t.co/zZ4BEz1PIn — Senator Hatch Office (@senorrinhatch) September 12, 2018

Collins has been subject to intense pressure from liberals over her vote on Kavanaugh. Republicans hold a narrow 51-49 edge in the Senate, meaning they can ill afford their own members to vote against Kavanaugh if all Democrats oppose his nomination.

Staffers have told multiple publications in recent days that the senator's offices have received "vulgar" and "abusive" phone calls and social media messages.

A Maine TV station obtained voicemails being left at Collins's offices, including one caller who brought up a 2003 email where Kavanaugh suggested cutting a paragraph out of a draft op-ed that characterized Roe v. Wade as widely accepted among legal scholars as settled law.

"Have you seen the emails ... where he talked about Roe v. Wade not being settled law. He [bleeped] lied to you? How [bleeped] naive do you have to be?" the caller said in the voicemail.

Annie Clark, a spokeswoman for Collins, separately gave The New York Times copies of letters and voicemail messages being sent to the senator's offices that included threats.

One caller, according to the Times, told a 25-year-old female staffer that he hoped she was raped and impregnated.

In addition to the verbal abuse, a crowdfunding campaign aimed at getting Collins to vote against Kavanaugh surpassed $1 million on Tuesday. If Collins votes to confirm Kavanaugh, the fundraiser vowed to give the money to the senator's eventual challenger should she run for reelection in 2020.

Sen. Tom Cotton Tom Bryant CottonGOP brushes back charges of hypocrisy in Supreme Court fight Trump uses bin Laden raid to attack Biden Battle lines drawn on precedent in Supreme Court fight MORE (R-Ark.) in a tweet on Wednesday said anyone who thinks Collins would be influenced or intimidated by the campaign doesn't know her very well.

If you think ⁦@SenatorCollins⁩ is influenced or intimidated by this, then you don’t know her very well.



PS - she beat a very credible Democratic opponent 61-39 in 2008, one of the worst years ever for GOP. So good luck with your crowd-funding. https://t.co/P8HeWeq6ha — Tom Cotton (@TomCottonAR) September 12, 2018

Democrats had not weighed in on the issue as of early Wednesday afternoon, despite pressure from their GOP colleagues and conservative groups like Judicial Crisis Network, which has spent big money on pro-Kavanaugh ads.

"Instead of condemning the outrageous tactics of Judge Kavanaugh's opponents, and announcing their support for an objectively extraordinary nominee, Senators Manchin, Heitkamp, Donnelly, McCaskill, and Nelson are standing on the sidelines while Judge Kavanaugh's opponents resort to bribes, smears, and physical threats," Judicial Crisis Network policy director Carrie Severino said in a statement, targeting Democrats up for re-election in states President Trump Donald John TrumpBiden on Trump's refusal to commit to peaceful transfer of power: 'What country are we in?' Romney: 'Unthinkable and unacceptable' to not commit to peaceful transition of power Two Louisville police officers shot amid Breonna Taylor grand jury protests MORE won in 2016.

Kavanaugh endured a string of intense confirmation hearings in the Senate last week, with Democrats peppering him with questions about his views on abortion, presidential power and the special counsel investigation.

Senate Majority Leader Mitch McConnell Addison (Mitch) Mitchell McConnellFEC flags McConnell campaign over suspected accounting errors Poll: 59 percent think president elected in November should name next Supreme Court justice Mark Kelly: Arizona Senate race winner should be sworn in 'promptly' MORE said Tuesday he expects a final vote on Kavanaugh's nomination during the last week of September.

--This report was updated at 1:43 p.m.