Rep. Joseph Kennedy, a Democrat from Massachusetts, just read a letter he wrote to his children about today's vote.
Here's what Kennedy said:
"This is a moment you will read about in your history books. Today, I will vote to impeach the President of the United States and I want you to know why.
He broke our laws. He threatened our security. He abused the highest, most sacred office in our land. I want you to know that it does not feel good.
I can't stop thinking about the cost to our country. Not just the impeachable offenses, but the collateral damage of a President who uses power like a weapon against his own people. A road to our decency, degrades our dignity.
I don't know how they will tell the story of this era. But I want to tell you the story of this day. Let the record show that today justice won. That we did our job. That we kept our word. That we did our job. That we kept our word. That we stood our sacred ground.
Let the record show we did not let you down. I love you. Listen to mom. I'm be home soon."
Watch the moment: