Definition of "cosponsoring" []

• Present participle of cosponsor. (verb)

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• "In addition to cosponsoring legislation, we worked together constantly in mustering votes, leading Senate debates, rousing public support—whatever was needed to pass the Great Society agenda."
• "And considering that the very paper cosponsoring the festival is itself on the clock, I think the ironies are thick enough, thank you very much."
• "Thank you so much for cosponsoring the Clean Water Protection Act (HR 1310), which was introduced by Congressman Pallone (D-NJ), along with Congressmen Reichert (D-WA) and Yarmuth (D-KY)."