The implied power of the federal government from that list is drafting soldiers.

Why “drafting soldiers” is implied

  • Raising taxes , regulating trade , and declaring war are all powers that are explicitly listed in the Constitution as powers of Congress, so they are expressed powers, not implied ones.
  • The Constitution gives Congress the expressed power to raise and support armies, and from that power, the government has developed the implied power to create and enforce a military draft, even though the word “draft” never appears in the Constitution.

So, among the options given, drafting soldiers is the implied power.