Polish Prime Minister Donald Tusk cautioned late Wednesday a make-or-break summit planned to hand out a comprehensive rescue package for eurozone debt crisis might fall below expectations. \"We have to be patient, as there are some elements in the rescue package that might need further time,\" said Tusk, whose country holds the rotating European Union (EU) presidency, at a press conference. While the European leaders were \"very close\" to a full political agreement on solving the crisis, \"I\'m cautious that all decisions could be adopted today,\" the prime minister said. Eurozone state leaders are trying to narrow their differences on how to beef up the firepower of the European Financial Stability Facility (EFSF), a 440-billion-euro stopgap bailout fund, and the scale of write-offs private holders of the Greek government bonds have to take.