[xzins]

In a lot of states they are proportional at some percentage of delegates and proportional at number of counties or districts won. I can’t say how Iowa does it. My memory says that Romney and Santorun split Iowa about evenly in 2012.

[Repeal The 17th]

Yes, and some states require a "minimum threshold" to be reached before being awarded a candidate to the national convention.

Primary Date	State/Territory	# Delegates
02/01/2016	Iowa	27
02/09/2016	New Hampshire	20
02/20/2016	South Carolina	47
02/23/2016	Nevada	27
03/01/2016	Alabama	47
03/01/2016	Alaska	25
03/01/2016	Arkansas	37
03/01/2016	Georgia	73
03/01/2016	Massachusetts	39
03/01/2016	Minnesota	35
03/01/2016	North Dakota	25
03/01/2016	Oklahoma	40
03/01/2016	Tennessee	55
03/01/2016	Texas	152
03/01/2016	Vermont	13
03/01/2016	Virginia	46
03/01/2016	Wyoming	26
03/05/2016	Kansas	40
03/05/2016	Kentucky	42
03/05/2016	Louisiana	43
03/05/2016	Maine	20
03/06/2016	Puerto Rico	20
03/08/2016	Hawaii	16
03/08/2016	Idaho	32
03/08/2016	Michigan	56
03/08/2016	Mississippi	36
03/12/2016	District of Columbia	16
03/12/2016	Guam	6
03/15/2015	Florida	99
03/15/2015	Illinois	66
03/15/2015	Missouri	49
03/15/2015	North Carolina	69
03/15/2015	Marianas	6
03/15/2015	Ohio	63
03/19/2016	Virgin Islands	6
03/22/2016	American Samoa	6
03/22/2016	Arizona	58
03/22/2016	Utah	40
04/05/2016	Wisconsin	42
04/09/2016	Colorado	37
04/19/2016	New York	92
04/26/2016	Connecticut	25
04/26/2016	Delaware	16
04/26/2016	Maryland	38
04/26/2016	Pennsylvania	68
04/26/2016	Rhode Island	16
05/03/2016	Indiana	54
05/10/2016	Nebraska	33
05/10/2016	West Virginia	31
05/17/2016	Oregon	25
05/27/2016	Washington	41
06/07/2016	California	169
06/07/2016	Montana	24
06/07/2016	New Jersey	51
06/07/2016	New Mexico	21
06/07/2016	South Dakota	26