@Sorceren, “this is the first time they’ve felt the need to remind the federal government” is a careless and misleading statement. Not only is states’ rights a very old and hotly contended issue in the U.S. but “this is the first time” suggests that this “reminding” activity is new or recent.
I looked up every one of the links in the source provided. I can’t decipher all the legislative lingo, but I could see this much:
California bill
Introduced April 14, 1994
Filed with Secretary of State 08/29/94
Georgia bill
Introduced 3/10/95
Committed 1/8/96
Oklahoma bill
Resolution first filed in 2008
Montana bill
Draft request received 10/27/2008
To be returned with amendments 04/02/2009
Michigan bill
Introduced 1/22/2009 and referred to committee
Washington bill
Introduced 1/30/09
New Hampshire bill
Introduced 2009
Arizona bill
Introduced 2009
Missouri bill
Bill currently not on a calendar; hearing not scheduled
So for some, this is an old resolution. For some, it is too recent to have been acted on and is simply on the record. For one, apparently nothing is happening. This does not add up to a sudden trend such as you are suggesting.
If you want your interpretation to be taken seriously, it should stay closer to the facts.