[GeronL]

Santorum and Paul are the only ones who haven’t been able to win a primary

I guess caususes don't count?

Santorum has now won 4 states.

[georgiagirl_pam]

Raw vote totals:

Romney- 1,119,298; Gingrich- 838,352; Santorum- 430,787; Paul- 305,840
Delegate count right now:

Romney-90, 17 of those are non-binding
Santorum- 44, 41 of those are non-binding
Gingrich- 32, 3 of those are non-binding
Paul- 13, 5 of those are non-binding

Total Delegate count needed to win- 1144

[JediJones]

Yeah, the terminology differentiates between the different processes for caucuses and primaries. You can see a list of here of which each state does:

http://www.realclearpolitics.com/epolls/2012/president/republican_delegate_count.html