This is true, in the legal sense: the president did not declare one in the first place—and it can only be declared if there is rebellion (there is an ongoing one for the past 51 years), an invasion, or if required by public safety.
This is true, in the legal sense—but everything is already in place, the only thing missing is a formal declaration. But the president doesn’t need one anymore: he is already implementing martial law without declaring it.