The 'other' elections in US

The battle between Barack Obama and Mitt Romney for the White House might be hogging the limelight, but US voters will also elect the entire House of Representatives, one-third of the Senate and 13 governors in key elections on Tuesday.

Republicans are expected to keep control of the House of Representatives, while Democrats were tipped to remain in sway of the Senate in today's elections, media here reported.

The Senate's 100 members serve six-year terms and one third of the seats are up for election every two years.

Republicans hold 47 seats. To retake control of the Senate, the Republican Party needs a net gain of four. With 23 Democratic seats up for grabs in a terrible economy, it seemed like a no-brainer that Republicans would be able to flip four. But it's now a struggle for the GOP, CNN reported.

All 435 seats in the House of Representatives are up for election every two years. The Republican Party has a large majority in the House with 242 seats while the Democratic Party holds 193. Democrats would need to win a net of 25 seats to take the chamber.

Besides, 11 states and two territories will elect governors in the polls.