ATLANTA (AP) -- Republicans around the country are pleading with voters to turn out in high-profile Senate primary races.
In Kentucky, Senate Minority Leader Mitch McConnell is expected to defeat challenger Matt Bevin, who is backed by ultraconservative tea party groups, in Tuesday's primary. That will set up a tough general election against Democrat Alison Lundergan Grimes, Kentucky's Secretary of State.
Kentucky offers one of the few opportunities for Democrats to pick up a Republican-held seat. Republicans need to pick up seven Democratic seats to win control of the Senate in the November election.
In Georgia, Republicans are engaged in a seven-way battle likely to end in a runoff to determine their candidate to fill the seat of retiring Republican Sen. Saxby Chambliss. Democrat Michelle Nunn is expected to win her party's nominations.