Democratic staff on the House Judiciary Committee have released a report titled “Constitutional Grounds for Presidential Impeachment,” helping to lay the groundwork for articles of impeachment against President Donald Trump.

The 55-page report, written entirely by staff for the Judiciary Committee, is similar to other reports released in prior impeachment inquiries. It goes through the history of impeachment, defines impeachable offenses and seeks to clarify what the staff calls “a number of inaccurate claims” recently made about how the proceedings work.