Via AFP:
Mainstream US Republicans led by Senate Minority Leader Mitch McConnell defeated Tea Party challengers in key primaries, setting the stage for their bid to regain full control of Congress in November.
Republicans lead the House of Representatives and are determined to wrest the Senate from President Barack Obama's Democrats in this year's mid-term elections.
Voters in six states, from Georgia in the US southeast to the Pacific northwest Oregon, cast ballots on what became known as the "Super Tuesday" of the 2014 campaign. But most eyes were on Kentucky, a key battleground between tradi...
