Sen. Jon Tester Jonathan (Jon) TesterDemocrats shoot down talk of expanding Supreme Court Pence seeks to boost Daines in critical Montana Senate race This World Suicide Prevention Day, let's recommit to protecting the lives of our veterans MORE (D-Mont.) said Friday that he will oppose Brett Kavanaugh's Supreme Court nomination.

Tester said Friday that he has a myriad of "concerns" about Kavanaugh, but could not get an in-person meeting with him to discuss the issues.

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“I have concerns that Judge Kavanaugh defended the PATRIOT Act instead of Montanans' privacy. I have concerns about his support for more dark money in politics. I have concerns about who he believes is in charge of making personal health decisions," Tester said.

Tester added that he had "deep concerns about the allegations of sexual assault against Judge Kavanaugh."

Kavanaugh and Christine Blasey Ford, the first of Kavanaugh's accusers to come forward publicly, testified before the Judiciary Committee on Thursday.

Tester noted that because he couldn't schedule a meeting with Kavanaugh the "only information I have is from what he said in his hearing."

Republicans don't need Tester's vote to confirm Kavanaugh. They have a 51-seat majority and can lose one senator before they need help from Democrats.

No Republican senator has said she or he will oppose Kavanaugh. Moderate GOP Sens. Susan Collins Susan Margaret CollinsThe Hill's Campaign Report: Trump faces backlash after not committing to peaceful transition of power Billionaire who donated to Trump in 2016 donates to Biden Credit union group to spend million on Senate, House races MORE (Maine) and Lisa Murkowski Lisa Ann MurkowskiOVERNIGHT ENERGY: House passes sweeping clean energy bill | Pebble Mine CEO resigns over secretly recorded comments about government officials | Corporations roll out climate goals amid growing pressure to deliver The Hill's Morning Report - Sponsored by Facebook - Trump previews SCOTUS nominee as 'totally brilliant' Abortion stirs GOP tensions in Supreme Court fight MORE (Alaska) are the two Republican senators who remain undecided.

Tester is the latest Democrat from a state President Trump Donald John TrumpSteele Dossier sub-source was subject of FBI counterintelligence probe Pelosi slams Trump executive order on pre-existing conditions: It 'isn't worth the paper it's signed on' Trump 'no longer angry' at Romney because of Supreme Court stance MORE won in 2016 to say he will oppose Kavanaugh.

Democratic Sens. Joe Donnelly Joseph (Joe) Simon DonnellyHarris faces pivotal moment with Supreme Court battle Trump meets with potential Supreme Court pick Amy Coney Barrett at White House Names to watch as Trump picks Ginsburg replacement on Supreme Court MORE (Ind.), Bill Nelson Clarence (Bill) William NelsonDemocrats sound alarm on possible election chaos Trump, facing trouble in Florida, goes all in NASA names DC headquarters after agency's first Black female engineer Mary W. Jackson MORE (Fla.) and Doug Jones (Ala.) also announced their opposition following Thursday's hearing.

Tester and Nelson did not support Trump's first Supreme Court nominee, Neil Gorsuch, and were viewed as likely 'no' votes on Kavanaugh.

Donnelly was one of three Democrats who supported Gorsuch. Democratic Sens. Joe Manchin Joseph (Joe) ManchinSenate passes resolution reaffirming commitment to peaceful transition of power Hopes for DC, Puerto Rico statehood rise Manchin defends Supreme Court candidate Barrett: 'It's awful to bring in religion' MORE (W.Va.) and Heidi Heitkamp Mary (Heidi) Kathryn HeitkampHarris faces pivotal moment with Supreme Court battle Centrists, progressives rally around Harris pick for VP 70 former senators propose bipartisan caucus for incumbents MORE (N.D.) remain undecided.

-- Updated 12:41 p.m.