Jim Ellis looks at the Senate races:
Arizona: A new Strategies 360 poll (12/4-9; 504 AZ registered voters) is bringing some good news to Sen. John McCain (R). According to these results, McCain leads Rep. Ann Kirkpatrick (D-AZ-1) by the rather large margin of 51-38%, among those committed or leaning to each candidate. These numbers are the best McCain has seen in this race, but the data appears to have at least a slight Republican skew. All of the Republican presidential candidates fare much better against Hillary Clinton than they do on a national basis suggesting a sample bias favoring Republicans.
Colorado: Rep. Scott Tipton (R-CO-3) announced that he will not challenge Sen. Michael Bennet (D) next year. The move is not surprising because Tipton had done little to prepare for a statewide contest. Despite having ten announced candidates, party leaders are still searching for one they believe can give Sen. Bennet a strong challenge. Now, they are strongly encouraging state Rep. Jon Keyser (R) to make the race. All of the GOP chaos allows Sen. Bennet to place himself in strong re-election position.
Louisiana: Rep. Charles Boustany (R-LA-3) officially declared his Senate candidacy this week as did former Rep. Joseph Cao (R-LA-2). They join Rep. John Fleming (R-LA-4) as announced candidates. State Treasurer John Kennedy (R), Public Service Commissioner Eric Skrmetta, and retired Air Force Colonel and former Senate candidate Rob Maness (R) have formed exploratory committees. Several Democrats, including Public Service Commissioner Foster Campbell, are considering becoming Senate candidates. State Sen. Troy Hebert is planning to announce his statewide bid in the new year as an Independent candidate. Gov. Bobby Jindal (R) and New Orleans Mayor Mitch Landrieu (D) have said they will not run. Sen. David Vitter (R) is retiring.