The Republicans have won 48 Senate seats to the Democrats' 46.

Democrats now need to win every remaining Republican-held battleground state - Missouri, New Hampshire and Pennsylvania - to have a shot at a 50-50 tie, which would be broken by the party that wins the presidency.

The GOP will also keep majority control of the House, CNN projects.

The magnitude of the GOP's down-ballot victories was stunning. Its incumbents held seats most Republicans began the 2016 election cycle assuming were lost in some states and overcame weak campaigns in others.

Most of those who ran away from presidential nominee Donald Trump survived, and those who embraced Trump did, too.

Source: MENA)