REUTERS/Piroschka van de Wouw
(This Nov. 9 story has been corrected to say that Jeff Hurd had enough votes to keep Republican control of Colorado's 3rd congressional district, in paragraph 2)
WASHINGTON (Reuters) - Republicans on Saturday were close to clinching control of the U.S. House of Representatives, a critical element for President-elect Donald Trump to advance his agenda when he returns to the White House in January.