CQ Politics rates the five U.S. Senate seats most likely to flip parties in the fall elections.

Note the last race - Mississippi. You heard it here first months ago that Mississippi would be in play --RS

Thanks again to Politicalwire.com

Each of the seats is currently held by a Republican.

In Virginia, former Gov. Mark Warner (D) is heavily favored to succeed retiring five-term Sen. John W. Warner (R-VA). The race is rated as Democrat Favored, meaning this is a likely pickup for the challenging party.

In New Mexico, Sen. Pete Domenici's decision not to seek re-election has created a golden opportunity for a Democratic takeover. This race is rated Leans Democratic.

In New Hampshire, first-term Republican Sen. John Sununu ranks as the incumbent most vulnerable to defeat this year. It's currently rated as No Clear Favorite.

In Colorado, Democratic gains over the past few years would have endangered Sen. Wayne Allard (R-CO) had he run for re-election. It's rated No Clear Favorite.

In Mississippi, where interim Sen. Roger Wicker (R-MS), appointed to his seat last December, faces competition from a well-known Democrat, former Gov. Ronnie Musgrove, in a special election to fill the final four years of resigned Sen. Trent Lott's unexpired term. This race is also rated No Clear Favorite.