Why do Republicans tweet so much more than Democrats?

Take a look at the age distribution for Republicans vs. Democrats. In particular, you're looking for people below 40, 45, or 50.

http://online.wsj.com/public/resources/documents/info-CONGRE...

A quick reminder, for folks who are disinterested in politics: politicians are, as a group, very much not like HN members in several regards, the least of which is age. And you should see the Supreme Court...

If you are interested in online political discourse, check out this paper:

Political Polarization on Twitter http://truthy.indiana.edu/site_media/pdfs/conover_icwsm2011_...

and for more info:

http://cnets.indiana.edu/groups/nan/truthy

This is nothing more than an interesting tidbit without knowing which tweets have the biggest impact. My guess is the Republican tweets have the bigger impact, especially with the large Palin following. Whether that impact is good or bad depends on the person.

Because Republicans are always campaigning, I would guess. Same reason they are disproportionately highly represented on the Sunday talk shows.