Now, to the sweeping new proposals of gun violence from president obama. The reaction has been fierce from the nra and other gun rights supporters. One governor suggestions they won't enforce... See More
Now, to the sweeping new proposals of gun violence from president obama. The reaction has been fierce from the nra and other gun rights supporters. One governor suggestions they won't enforce proposals even if they become law. Jon karl has the story. Reporter: At a firearms trade show in las vegas wednesday, the reaction to the president's plan was almost universally negative. I'm opposed to it. Going to have impact on me. I don't agree with obama. Reporter: In texas, governor rick perry said he was disgusted the way the president was using the sandy hook massacre. We need to be looking at the mental health issue substantially than we are using the death of the young children to further a p cause. Reporter: A texas state representative went further, vowing to write a bill that would make it a felony for anyone in the state to enforce new gun laws. In mississippi, the governor had a similar idea, urging the legislature to prohibit the enforcement of any federal laws obama could get passed. I support the current laws. I don't think we need to change anything at all. Reporter: The ferocity of the opposition does not surprise the white house. It's been two decades since any new gun laws were passed. We care too much about our children to allow this to continue. Reporter: Ban on assault weapons background checks on all gun sales is something the nra is adamantly opposed to and vows to fight. There's people that care deeply about their second amendment writes and are not going to vote for politicians who sell them out. Reporter: In recent polls, a significant majority of the public supports each of the major elements of the president's plan. That's why the white house plans to launch an all-out public campaign to support it, tapping into the grassroots net that helped the president win re-election. They're going to need everything they've got. Jon karl, thanks.
This transcript has been automatically generated and may not be 100% accurate.