A majority of senators said the impeachment trial of former President Trump is constitutional despite calls from some Republicans to dismiss proceedings.
A simple majority was needed to proceed.
What comes next: The House managers and Trump's defense team are each allotted up to 16 hours spread over two days to present their cases.
The House managers arguing for impeachment go first, and we know that they plan to use a lot of video from the day of the insurrection to make their points. We expect the proceedings will resume at noon ET tomorrow.
Watch the vote: