Sen. Susan Collins released a statement Friday afternoon in support of the Senate's tax reform bill, raising confidence that the bill will pass through the senate Friday evening.

Key quote: "I will cast my vote in support of the Senate tax reform bill. As revised, this bill will provide much-needed tax relief and simplification for lower- and middle-income families, while spurring the creation of good jobs and greater economic growth."

Go deeper: Here are the new changes to the Senate tax bill.