A U.S. President can grant 'Cabinet-level rank' to officials who are not department heads, allowing them to attend Cabinet meetings at the President's discretion.
While the Constitution established the Supreme Court, it gave Congress the power to create the entire system of lower federal courts, such as district courts and courts of appeals.
If a House committee refuses to act on a bill, a majority of House members (218) can sign a 'discharge petition' to rescue the bill and force it to the floor for a vote.
In Congress, party 'Whips' act as assistant leaders responsible for 'whipping' up support, counting votes before they happen, and ensuring party members are present for crucial decisions.