the democrats tripp 0 house seats. >> does that technically make it a blue wave? >> yesterday republican congressman david valadao conceded to democratic challenger tj cox who has been declared the apparent winner. adding to the large st wave for democrats since watergate. democrats have won 41 house seats in the trump era. the latest numbers show democrats won the national popular vote in house races by 9.7 million votes, which is the largest midterm vote margin ever. the democrats 8.6 percentage point victory is the largest margin in a midterm since 1986.