[Bull Snipe]

So in fact, property as referred to in the justifications for secession is another word for slave. They were not denied access to the territories, they cannot take slaves with them when they go. The Constitution does not have any language that prohibits congress from limiting slaves in the territories of the United States.

[PeaRidge]

But some states did prohibit the movement of slaves.

That is the very reason that as soon as secession occurred the issue of slavery extension became a moot point and red herring for the northern press .

[DiogenesLamp]

The Constitution does not have any language that prohibits congress from limiting slaves in the territories of the United States.

Privileges and Immunities clause. If these are rights in the states, they must also be rights in the territories.