These 4 comments from senators provide a glimpse of what to expect from William Barr's testimony

Attorney General William Barr's testimony before the Senate Judiciary Committee about Special Counsel Robert Mueller's investigation into 2016 Russian election interference and the Trump campaign's conduct surrounding the meddling on Wednesday is expected to be quite tense today. It should also serve as a showcase for a few Democratic presidential candidates, who are stepping off the campaign trail for the day and focusing on their day jobs. Take a look at what some of the senators on the committee have been saying leading up to the hearing.

1. Kamala Harris (D-Calif.) - The 2020 candidate wants to make sure Barr knows he's not President Trump's lawyer.

2. Lindsay Graham (R-S.C.) - The chair of the committee is just ready to get this over with.

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3. Amy Klobuchar (D-Minn.) - Another presidential candidate, Klobuchar questions whether political motives were behind Barr's summary of Mueller's findings.

4. Mike Lee (R-Utah) — Lee is on the same page as Klobuchar, broadly speaking. He just thinks it's the Democrats who are turning the situation into political theater, not Barr. Tim O'Donnell