He is up for election in 2008. http://www.carllevin.com/
Senator Shaheen comes up for reelection in 2014, and Senator Ayotte comes up for reelection in 2016.
The first term of US Senator from Texas Ted Cruz, who replaced Sen. Kay Bailey Hutchison when she resigned in 2013, ends in January 2019, so he is up for reelection in November 2018.
Alabama's senior senator is Richard Shelby
Cornyn won reelection in 2008 and Hutchinson faces reelection in 2012.
The U.S. Senate seat currently held by Bob Casey, Jr. of Pennsylvania next comes up for election in November, 2018.
Robert Casey, the U.S. Senator from Pennsylvania, is up for reelection in 2024. He was first elected to the Senate in 2006 and has since been re-elected, with his current term set to expire in January 2025. Therefore, the next election cycle will determine whether he retains his seat.
Yes, Barack Obama is going up for reelection.
John Cornyn's Senate seat is a Class 2 seat, which means that he comes up for reelection on November 4, 2014, and his current term ends on January 3, 2015.
Senators are elected for one six year terms. After their six years are up, they can run for reelection again. Unlike the President, there is no term limit for a Senator.
Diane Feinstein was not up for reelection in 2010. She was elected to the U.S. Senate in 1992 and her term ended in January 2013. However, she did run for reelection in 2012 and won.
242 House Republicans will be up for reelection in 2012, along with 192 House Democrats.
No, Mitch McConnell was not up for reelection in 2012. He was elected to the U.S. Senate in 2008 and his term was set to expire in January 2015. McConnell did run for reelection in 2014, which he won.