Sen. Johnny Isakson Johnny IsaksonLoeffler paints herself as 'more conservative than Attila the Hun' in new campaign ad Georgia GOP Senate candidates cite abortion in pushing Ginsburg replacement Loeffler: Trump 'has every right' to fill Ginsburg vacancy before election MORE (R-Ga.), the chairman of the Senate Veterans' Affairs Committee, defended Sen. Jon Tester Jonathan (Jon) TesterPence seeks to boost Daines in critical Montana Senate race This World Suicide Prevention Day, let's recommit to protecting the lives of our veterans Filibuster fight looms if Democrats retake Senate MORE (D-Mont.) on Tuesday and said President Trump Donald John TrumpOmar fires back at Trump over rally remarks: 'This is my country' Pelosi: Trump hurrying to fill SCOTUS seat so he can repeal ObamaCare Trump mocks Biden appearance, mask use ahead of first debate MORE is wrong to say all of the allegations against his pick to lead the Veterans Affairs Department, Ronny Jackson, are wrong.

Responding to a CNN reporter at a Rotary Club meeting, Isakson pointed to a CNN report that he said verified some of the allegations made against Jackson, a White House physician, that were included in a memo released by Tester last week. Trump has called for Tester, the ranking Democrat on the Veterans' Affairs panel, to resign over the memo.

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Isakson said the report, which involves allegations against Jackson made by Vice President Pence's physician, showed that Trump made a "false statement" when he said the allegations against Jackson were off-base.

"Fortunately last night, a story broke that made that a false statement," Isakson said. "Because part of the allegations made in one of the affidavits was verified, where allegations that had been incorporated in some of the complaints against Adm. Jackson were validated in that. So it looks like there's a story that corroborates the fact that there were some of those allegations that were correct."

The story Isakson referred to, by CNN's Manu Raju, said that Pence's physician had raised alarms within the White House about Jackson. Pence's physician, the report said, had a confrontation with Jackson over whether Jackson violated federal privacy protections for second lady Karen Pence Karen Sue PenceThe Hill's 12:30 Report - Presented by Facebook - Biden, Pence elbow bump at NYC Sept. 11 ceremony The Hill's Morning Report - Sponsored by National Industries for the Blind - Trump seeks to flip 'Rage' narrative; Dems block COVID-19 bill Pentagon, Trump, Biden to mark 9/11 anniversary MORE.

CNN reported that Vice President Pence's physician wrote a memo in which he said he had felt intimidated by Jackson over the episode and of being treated unprofessionally.

The allegations in the memo released by Tester, which it said were based on 23 sources, included charges that Jackson had created a hostile work environment. Jackson has denied the allegations, which also include charges of drinking on the job and over-prescribing pills.

Trump has repeatedly attacked Tester, the ranking Democrat on the Senate Veterans Affairs Committee, over his role in surfacing the allegations against Jackson, calling them "vicious rumors."

"Allegations made by Senator Jon Tester against Admiral/Doctor Ron Jackson are proving false," Trump wrote on Twitter, adding that Tester "should lose race in Montana."

Tester is up for reelection this year in a state that Trump won by double digits in 2016.

Updated at 9:30 a.m.