No. The power to make treaties is exclusive to the Federal government.
no
The Secretary of State negotiates treaties but they must be approved by the President and ratified by the Senate.
It is the Secretary of State's job to negotiate treaties.
National
no
two treaties
state is not bound by any treaties to which it is not a party
Robert Willem Gaston de Muralt has written: 'The problem of state succession with regard to treaties' -- subject(s): Treaties, State succession
The Secretary of State typically negotiates treaties. The Senate must ratify any treaty before it become binding.
In the US, it is the Chief of State or President that makes treaties with other nations.
Honor previous treaties (Apex)