That's not the Senate's decision to make. It's the House's.
The house votes on the content of the charges.
The Senate votes "Guilty" or "Not Guilty".
Unless they fail to do their duty.
Read again, it IS the Senate's job to remove him from office, by 2/3 vote.
"The government is a child that has found their parents credit card, and spends knowing that they never have to reconcile the bill with their own money"-Shannon Churchill