"Cosponsor" means to work together or support someone in their efforts to propose, develop, or promote a certain idea, project, or legislation. Full definition
Those senators have said they would support some version of the Compassionate Care Act, a bill cosponsored by Independent Democratic Conference senator Diane Savino. (politico.com)
Minority Leader Mills, and Legislators Lynne Dixon, Hamburg; Dino Fudoli, R - Lancaster; Kevin Hardwick, R - Tonawanda; Edward Rath III, R - Amherst; and Ray Walter, R - Clarence, have signed on as cosponsors of the resolution and clocked it in for the Legislature's March 17 session. (www2.erie.gov)
More than 260 members of Congress heard your voice and have taken our side in the struggle by cosponsoring legislation to keep the big banks out of real estate brokerage and management. (realtormag.realtor.org)