I'm very much for the Second Amendment. It's a good insurance policy against tyranny.
Trigger locks are a good adjunct to home firearm safety, especially with little children around.
Mandating trigger locks is not about safety, though. It's a basically useless and wasteful gesture in the absence of good firearm safety training. Forcing gun-makers to include them with handguns is, yes. Please note the difference between using trigger locks in a coordinated gun safety plan and making people criminals if they don't own one or use it. I'm not sure what his stance is.