The senators were hearing the first witness when the lawyer announced to them that the President had resigned.

It was a sound in her mind, but not one the senator could hear.

But in addition, during the family leave discussion, the senators heard two altogether different voices of experience.

But before I read it, I want every senator to hear you say you are present and will listen.

Some people are wondering whether the vacationing senator has heard he's become the vice president's new role model.

She wondered if the senators could hear what was going on in the Situation Room.

But senators have heard Fourth of July speeches before.

"Our Congressman and both our senators will hear of this," Ginny finished.

The lobbyists made sure senators heard not only from them, but also from the thousands of businesses they represent.

What the senators heard on Thursday illustrates the difficulty investigators face in making firm conclusions.