2:37pm: Rosenthal and Morosi report that the Marlins are no longer pursuing Johnson or Heath Bell.
2:15pm: Via Twitter, MLB.com's Joe Frisaro says the Marlins are not expected to complete any trades by the deadline, which is in 45 minutes.
11:29am: Ken Rosenthal and Jon Paul Morosi of FOX Sports say the Marlins increased their offer for Johnson by adding another minor leaguer along with Tucker.
11:07am: ESPN's Peter Gammons reports that the Marlins "appear to be moving closer" to a Nick Johnson trade. Last we heard, the Fish offered pitcher Ryan Tucker to the Nationals and asked Washington to pay part of Johnson's contract (he has $2MM remaining). At the same time, Danny Knobler of CBSSports says the Marlins are growing frustrated with the trade talks and may move on.
Johnson, a free agent after the season, currently projects to fall short of Type B status, so it makes sense for the Nats to take what they can get. At the same time it'd be big for the Marlins to put a .408 OBP player in front of Hanley Ramirez.