The Senate will reconvene at 1 p.m. ET Thursday to wrap up the questioning phase of the impeachment trial of President Donald Trump. You can watch the live feed of the proceedings below once it begins.

Following three days of opening statements from Rep. Adam Schiff (D-Calif.) and his crew of House impeachment managers and three days of presentations from the president's defense team, senators began the first of two days of questioning Wednesday. Per the rules of the trial, senators are required to submit all questions for the impeachment managers and the defense team in writing to Chief Justice John Roberts, who is presiding over the trial.

During Wednesday's question time, Justice Roberts reportedly refused to read questions from Sen. Rand Paul (R-Ky.) that named the whistleblower whose actions revealed the controversial call between President Trump and Ukrainian President Volodymyr Zelensky that is at the center of the impeachment efforts.

But the fight is not over: Paul told reporters Wednesday, "It's still an ongoing process, it may happen tomorrow." Fox News reported that Paul might even try Thursday to force Roberts to read questions that name the whistleblower.

Once the questioning phase is concluded, the Senate will vote on whether to subpoena more documents and/or call witnesses. That vote is expected to occur Friday.

Democrats have been clamoring to call former national security adviser John Bolton after leaked portions of his book manuscript reportedly claimed that the president said he was withholding aid to Ukraine in order to get an investigation into former Vice President Joe Biden and his son, Hunter Biden. Also, news broke Wednesday that Bolton reportedly told Rep. Eliot Engel (D-N.Y.) to look into the firing of former Ukraine Ambassador Marie Yovanovitch.

Republicans, in turn, have threatened to call the Bidens — and even the whistleblower — as witnesses. And at least one Democratic senator seems to believe calling Hunter Biden would be a worthwhile endeavor.

But the fight could all be for naught: GOP senators revealed Wednesday night that they believe they now have the votes to block any calls for witnesses.