Democrats to win majority of seats in US Senate Democrats won the midterm elections and took Republican Senate seats in South Carolina, Texas and Iowa, according to CNA. BBC Russian reports that after Josh Turk's victory in Iowa, the Democrats will have at least 51 of the 100 seats in the Senate. In South Carolina, Annie Andrews defeated incumbent Republican Senator Darlene Graham, and in Texas, James Tallarico defeated Ken Paxton. The previous claim that Democrats had won control of both houses of Congress was wrong: the evidence supports a majority in the Senate, but not in the House.