Federal law, which covers drugs in interstate commerce, is clear enough.

Republicans have also been supportive of interstate and international commerce.

How can it be argued that baseball is not an interstate commerce?

And because interstate commerce is involved, only the federal government can supply this intervention.

But federal registration requires use of the mark in interstate commerce.

Effects of organized criminal activity on interstate and foreign commerce.

The items were moving as, or constituted a part of, interstate commerce.

"It's absolutely clear that professional sports are both commercial and a part of interstate commerce, which Congress has the power to protect."

The Court long since had recognized that interstate commerce may be made to pay its way.

Congress cannot police all state legislation to protect interstate commerce.