Republicans have seized control of the U.S. Senate after flipping multiple Democrat-held seats while seeing their own incumbents successfully fend off challenges. The unexpected battleground of Nebraska pushed Republicans over the top late Tuesday, when incumbent Sen. Deb Fischer brushed back a surprisingly strong challenge from independent newcomer Dan Osborn. Democrats watched their efforts to salvage their slim majority slip out of reach as tallies rolled in across a map that favoured Republicans, who had to defend just 11 seats in comparison with 21 for the Democrats. Early in theRead more