Timothy P. Cahill’s former campaign manager was acquitted of corruption charges Tuesday, but the jury said it was deadlocked on the charges against Cahill, leaving the former treasurer’s fate in limbo as deliberations stretch into a seventh day.

The jury’s announcement that it had cleared Scott Campbell of two counts of conspiracy but was still wrestling with the same charges against Cahill added a new element of suspense to the trial, which ­began five weeks ago.