(CNN) - A new poll out of Florida offers the state's three Senate candidates some feedback on the effectiveness of their campaigns–but none of it is good for Charlie Crist.
The state's Republican-turned-independent governor is trailing Republican Marco Rubio by a 40-28 point margin among likely voters, according to a Mason-Dixon poll released Saturday. Democratic Rep. Kendrick Meek has advanced five points in the last month to 23 percent.
Those five points have come at the expense of Crist, who has dropped five points since the same poll was conducted in August. Rubio has gained two points in the last 30 days.
"In essence, Crist is bleeding Democrats to Meek and independents to both Meek and Rubio," Mason-Dixon pollster Brad Coker said in a statement, adding that Rubio "only needs to gain 2-3 points to wrap up the race."
Crist's favorability rating has also dropped to 35 percent–its lowest since October 2002, according to the poll. His unfavorable rating has risen one point in the last month to 36 percent–the highest in the 13 years the question has been asked about Crist.
Both Rubio and Meek have made gains in their favorability ratings over the last month. Meek's unfavorable score has dropped 10 points in that time.
According to Coker, Rubio is "in a solid position to win," Crist is "fading" and Meek is "in a tight position."
"He has an outside chance to pull off a major comeback, but it is largely predicated on his ability to convince Crist's new-found Democratic friends that the former Republican's campaign is hopeless and it is time for them to come back to their party," Coker said. "That will be a tough challenge, but it is now the only apparent way for Rubio to lose."
The Mason-Dixon poll was conducted September 20-22 by phone with 625 registered voters. It has a sampling error of plus/minus 4 percentage points.