Republicans are expecting a long and difficult Election Night in 2008 and their prospects for the U.S. Senate are especially bleak.

It’s time to add United States Senator John Cornyn to the list of potentially vulnerable Republican incumbents in Election 2008.

For the third straight month, Democrat Jeanne Shaheen leads Senator John Sununu by eight percentage points in his bid for re-election.

Four years ago, John Kerry was running for President of the United States, a race he narrowly lost. Now, the 2004 Democratic nominee is seeking re-election to the United States Senate and he should win handily.

The latest Rasmussen Reports telephone survey shows that Minnesota Senator Norm Coleman has opened a seven-percentage point lead over Democratic challenger Al Franken in his bid for re-election.

For the second straight month, Democrat Mark Udall holds a three-point edge over Republican Bob Schaffer in the race to become Colorado’s next United States Senator.

The latest Rasmussen Reports telephone survey in North Carolina found U.S. Senator Elizabeth Dole enjoying comfortable leads over two potential Democratic opponents in her bid for re-election.

The latest Rasmussen Reports telephone survey in New Mexico shows that Democratic Congressman Tom Udall has widened his lead over potential Republican opponents in the race for the state’s open U.S. Senate seat.

In a difficult year for Republicans, Alaska Senator Ted Stevens is providing GOP leaders with yet another headache.

The latest Rasmussen Reports telephone survey in Alabama found Republican Senator Jeff Sessions leading Democrat Vivian Davis Figures by more than twenty percentage points.

The latest Rasmussen Reports telephone survey of Tennessee voters found Republican incumbent Lamar Alexander well ahead of both potential Democratic opponents in the race for the United States senate.

The latest Rasmussen Reports telephone survey in Maine found Republican Senator Susan Collins leading Democratic Congressman Tom Allen 54% to 38% in her bid for re-election.

The latest Rasmussen Reports telephone survey of New Jersey voters found Democrat Frank Lautenberg holding double-digit leads over two Republican opponents in the race for the United States Senate. Lautenberg leads Joe Pennacchio 54% to 36% and Murray Sabrin 54% to 35%.

Democrat Mark Warner still has a comfortable lead over Republican Jim Gilmore in the race for Virginia’s seat in the U.S. Senate. The latest Rasmussen Reports telephone survey of Virginia voters found Warner up 55% to 39%

The latest Rasmussen Reports telephone survey in Georgia found Republican Senator Saxby Chambliss enjoying double-digit leads over three potential Democratic candidates in his bid for re-election.

The latest Rasmussen Reports telephone survey of New Hampshire voters found no change in the race for the United States Senate over the past month. Once again, Democratic challenger Jeanne Shaheen leads Republican incumbent John Sununu 49% to 41%. In September, Shaheen led 48% to 43%.

The latest Rasmussen Reports telephone survey in Colorado found that the state’s U.S. Senate race remains very close early in the general election campaign. Democrat Mark Udall now holds a very modest advantage over Republican Bob Schaffer, 46% to 43%.

The latest Rasmussen Reports telephone survey of South Dakota voters finds Democratic Senator Tim Johnson enjoying substantial leads over two potential Republican candidates in the race for the United States Senate.

The latest Rasmussen Reports telephone survey of New Jersey voters found Democratic Incumbent Frank Lautenberg leading three Republican opponents in the race for the U.S. Senate in head to head match-ups.

The latest Rasmussen Reports telephone survey of New Mexico voters found Democrat Tom Udall ahead of both his Republican opponents in the race for the United States Senate. Udall leads Steve Pearce 50% to 42% and Heather Wilson 50% to 43%.

The latest Rasmussen Reports telephone survey of Virginia voters found Democrat Mark Warner still holding a significant lead over Republican Jim Gilmore in the race for the U.S. Senate. Warner leads Gilmore by twenty percentage points, 57% to 37%.

The latest Rasmussen Reports telephone survey of Oregon voters found Republican Incumbent Senator Gordon Smith with leads over his Democratic challengers.

The latest Rasmussen Reports telephone survey found Al Franken slightly ahead of incumbent Senator Norm Coleman in what is likely to be a closely contested campaign. Franken, a former comedian and political commentator, leads Coleman 49% to 46%.

The tight race for Colorado’s open United States Senate seat has remained virtually unchanged over the past two months.

The latest Rasmussen Reports telephone survey in New Hampshire found former Governor Jeanne Shaheen leading incumbent Senator John E. Sununu in the race for New Hampshire’s United States Senate seat. It’s Shaheen 49%, Sununu 41%.

In the 2008 Virginia Senate race, the latest Rasmussen Reports telephone survey finds Democrat Mark Warner leading Republican Jim Gilmore 53% to 38%. Both men are former governors of the state of Virginia.

U.S. Senator Saxby Chambliss, the GOP incumbent, enjoys more than 50% support in each of three match-ups with potential Democratic opponents.

When pitted against Democratic comedian Al Franken, Republican Senator Norm Coleman edges closer to 50% support in the most recent Rasmussen Reports telephone survey of the Minnesota Senate race.

An early look at the 2008 Senate race in Kentucky shows mixed results for incumbent Senator Mitch McConnell.

In the 2008 race for Virginia’s open U.S. Senate seat, a Rasmussen Reports telephone survey finds Democrat Mark Warner leading Republican Jim Gilmore 53% to 37%.

The good news for Republicans in general and Elizabeth Dole in particular is that North Carolina Governor Mike Easley is not interested in running for Dole’s seat in the U.S. Senate next year.

Republican Senator Saxby Chambliss leads two potential Democratic candidates by solid margins in the first Rasmussen Reports poll of the Georgia Senate race.

A Rasmussen Reports telephone survey in New Hampshire finds that former Governor Jeanne Shaheen (D) leads incumbent Senator John Sununu (R) 48% to 43%.

If Democrat Mark Warner jumps into the Virginia Senate race for 2008, he will start out with a large lead over two Republicans expected to campaign for the job.

Minnesota is likely to host one of the more interesting and competitive Senate races in Election 2008.