I would also say what it is depends not only on if you are democrat of republican but also which country you are from, inflationary currencies aren't really a problem in Western countries, but they most certainly are in some developing ones with currency controls and big inflation.
This is very important to note: a good currency comes close to "ideal money", which has near constant value. Whether it is *slightly* deviating from it with a slight inflation or deflation, as long as this inflation and/or deflation is BOUND to strict limits (of a few % per year) and is more or less predictable, is not a problem, because you can take this into account in agreements over time.
Currencies are, however, not meant to be long term stores of value. They are meant to fluidize commercial interaction, and for that, they need to have more or less predictable value evolution. You cannot make a deal over a few years in a "currency" of which you have no idea what value it will have over this time - if no mechanism is in place which tries to keep this value "on track".