Democrat's Fuzzy Budget Math

Redstate has the story of how Democrats have tried to put $23 billion more into the budget than the President requested. How you might ask:

According to an analysis done by the Republican Study Committee, the omnibus bill would include up to $7.4 billion in “emergency spending” to avoid spending restraints. (Tucked away in the bill are plenty of examples of non-emergency items, such as $100 million for spending for security at political conventions, which take place regularly every four years).(link in original)

Now $100 million is a small percentage of $23 billion, but it does seem extraoridnarily high for the conventions (even considering it is split among the two parties).