One or more persons proposing any bill or resolution.
Any member signed on, other than the prime sponsor, proposing any bill, joint resolution, or resolution. Each bill/joint resolution/resolution has a prime sponsor and co-sponsors.
The legislator introducing a bill is known as the prime sponsor. Those who "sign on” afterwards are known as co-sponsors.
A sponsor of a bill or resolution who is not the principal sponsor.
To formally include a legislator's name on the list of a bill's or amendment's introducers.
A senator or representative who joins in sponsoring a piece of legislation but is not the one who introduced the legislation. A large number of co-sponsors increases a bill’s chances for consideration.
A member or members that add his or her name formally in support of another members bill. In the House a member can become a co-sponsor of a bill at any point up to the time the last authorized committee considers it. In the Senate a member can become a co-sponsor of a bill anytime before the vote takes place on the bill. However, a co-sponsor is not required and therefore, not every bill has a co-sponsor or co-sponsors.
