Another poll shows Charlie Crist would be better off running as an independent.

Public Policy Polling (D), which on Tuesday showed Crist trailing Marco Rubio 60-28 in the GOP Senate primary in Florida, now shows Crist running a much-closer second in a three-way general election matchup between him, Rubio and Rep. Kendrick Meek (D-Fla.).

The poll has Rubio holding his lead at 34 percent, with Crist at 27 percent and Meek at 25 percent. It echoes a January poll by Republican pollsters Fabrizio, McLaughlin and Associates that showed Rubio at 31, Crist at 26 and Meek at 24.

In a straight Rubio-versus-Meek race, PPP has Rubio leading 44-39, which is notably his smallest margin since late last year. PPP also notes that there are more undecided Democrats than Republicans in that matchup, so the race could close even more.

Democrats think this race is becoming more and more competitive as Crist implodes, and they appear to have a point.