(CNN) - House Foreign Affairs Chairman Ed Royce, R-California, met with Republicans on the committee and urged them to be respectful of Secretary of State Hillary Clinton, a GOP member of the Committee tells CNN.
Clinton will testify Wednesday before the committee on the U.S. consulate attack in Benghazi, Libya in September that left four Americans dead, including the U.S. ambassador. She testified before the Senate Foreign Relations Committee earlier in the day, where she gave her own statement and took questions in the two-and-a-half-hour hearing.
While most lawmakers on both sides of the aisle genuinely do respect Clinton and don't have to be told, there was concern some new House members may try to be combative in order to make an early name for themselves.
Clinton was originally scheduled to testify last month but postponed her appearance as she was treated for illness, a concussion and a blood clot near her brain. The country's top diplomat returned to work just over two weeks ago.
In her Senate testimony earlier Wednesday, most senators praised Clinton for her service over the last four years before they asked their questions. Only a few Republicans delivered somewhat blistering comments to the secretary of state. Sen. Rand Paul of Kentucky said if he had been president, he would have fired her for not reading certain cables about security in Libya.
Clinton mostly maintained a straight-forward tone, though she grew emotional at times when talking about the victims' families. And at one point, Clinton shouted in response to repeated questions from Republican Sen. Ron Johnson about the talking points released after the attack.
Rep. Jason Chaffetz, R-Utah, said Clinton is "going to get some very hard questions" on the State Department's role in handling security for diplomatic security in Libya before the attack, as well as what Clinton was doing the night of the violence.
"We had an ambassador missing for something like seven hours with no assets brought in" for a response, he said on CNN's "Starting Point with Soledad O'Brien."
Asked if her positive reputation in Washington may hinder some lawmakers from grilling the secretary, Chaffetz agreed that she's "held in high esteem" but said she'll still face tough questions.
"Yeah we have a great deal of respect of her, but these are the questions," he said. "My concern is moving forward that we didn't actually solve these problems and that's the deep concern and question for the secretary."
An independent report from the Accountability Review Board ordered by the State Department said it did not find "that any individual U.S. Government employee engaged in misconduct or willfully ignored his or her responsibilities" leading up to the attack. However, one State Department official resigned and three others were placed on administrative leave after the report was released in December.
Two months earlier, as President Barack Obama faced scrutiny over the Libya attack, Clinton said the buck stops at her desk, not his.
"I take responsibility. I'm in charge of the State Department," Clinton told CNN's Elise Labott in October. It was a statement Clinton repeated several times in her Senate testimony.