Sentence:  Many on both sides agreed that we should give small businesses and individuals the ability to participate in a new insurance marketplace – which members of Congress would also use – that would allow them to <WSD>pool</WSD> their purchasing power and get a better deal from insurance companies. 
Meaning of the word marked with <WSD> tags:  To put together; contribute to a common fund, on the basis of a mutual division of profits or losses; to make a common interest of.