Encouraging news for Franken, but it should be noted that Rasmussen has tended to be more favorable to Franken than some other pollsters like SUSA and Quinnipiac.
UPDATE: And on cue, SurveyUSA brings a very different look at the race (7/11-13, likely voters, 6/10-12 in parens):
Bizarrely, SUSA shows that Coleman's strongest voting bloc is the 18-34 demographic, who give him an implausibly high 58-31 lead. I find it difficult to believe that younger voters are Franken's weakest link, so it's hard for me to fully buy this poll and others like it from SUSA showing the same pattern.