He used those words for two different things. He used “support” to indicate what they did for him when he was running, and he used “endorsed” to describe their action regarding the gun bill he signed.
Both of those were accurate, as the NRA officially called for the gun bill to pass.
Some WP blogger couldn’t understand english (as usual) and the mitt-haters took his lie and used it.
“What I did AS governor” is not “running for Governor”. It’s not “parsing words”, it’s looking at their clear meaning.
Funny how you embrace “plain meaning” when you (incorrectly) think it makes your case.
But reject “plain meaning” when it comes to other words such as “all” and “people” and “participate.”