In 1902, secretary of state john hay negotiated a treaty with colombian foreign minister tomás herrán in which the united states was granted permission to build a canal in panama, which was controlled by colombia at the time. the u. s. senate approved this treaty, but the colombian government did not. what did the united states do after the rejection of this treaty? a. the united states declared war on colombia. b. the united states assisted in a panamanian revolt against colombia, and panama became an independent country. c. the united states imposed a trade embargo on colombia. d. the united states started to build its canal even though it did not have approval.