Yes, individuals now have standing. Can you sue the President? Dunno.
From SCOTUS blog plain english :
The court of appeals ruled against her, holding that she didn’t even have the legal right (which we call “standing”) to bring the claim, because only a state could argue that Congress had infringed upon state power. At the Supreme Court, Bond got some help from an unexpected source: the federal government, which agreed with her that she had the right to challenge the law
http://www.scotusblog.com/case-files/cases/bond-v-united-states/
I was being sarcastic-standing to sue applies only when a law or prosposed law injures a person or entity in crinimal law. Since the law and US CONS does not hurt anyone in the matter of our defacto president, none of us are indeed injured by the law.
The matter seems to be a civil one-someone gaining an advantage by not complying with a law or standard. I think this will be the means of resovling the issue, but not sure who has the ability to sue, other than the US Consitution.... After all, the administration/executive branch is charged with upholding/enforcing the law....
Perhaps a lawyer could chime in....