18 U.S.C. § 351 : US Code - Section 351: Congressional, Cabinet, and Supreme Court assassination, kidnapping, and assault; penalties

      (a) Whoever kills any individual who is a Member of Congress or a
    Member-of-Congress-elect, a member of the executive branch of the
    Government who is the head, or a person nominated to be head during
    the pendency of such nomination, of a department listed in section
    101 of title 5 or the second ranking official in such department,
    the Director (or a person nominated to be Director during the
    pendency of such nomination) or Principal Deputy Director of
    National Intelligence, the Director (or a person nominated to be
    Director during the pendency of such nomination) or Deputy Director
    of the Central Intelligence Agency, a major Presidential or Vice
    Presidential candidate (as defined in section 3056 of this title),
    or a Justice of the United States, as defined in section 451 of
    title 28, or a person nominated to be a Justice of the United
    States, during the pendency of such nomination, shall be punished
    as provided by sections 1111 and 1112 of this title.
      (b) Whoever kidnaps any individual designated in subsection (a)
    of this section shall be punished (1) by imprisonment for any term
    of years or for life, or (2) by death or imprisonment for any term
    of years or for life, if death results to such individual.
      (c) Whoever attempts to kill or kidnap any individual designated
    in subsection (a) of this section shall be punished by imprisonment
    for any term of years or for life.
      (d) If two or more persons conspire to kill or kidnap any
    individual designated in subsection (a) of this section and one or
    more of such persons do any act to effect the object of the
    conspiracy, each shall be punished (1) by imprisonment for any term
    of years or for life, or (2) by death or imprisonment for any term
    of years or for life, if death results to such individual.
      (e) Whoever assaults any person designated in subsection (a) of
    this section shall be fined under this title, or imprisoned not
    more than one year, or both; and if the assault involved the use of
    a dangerous weapon, or personal injury results, shall be fined
    under this title, or imprisoned not more than ten years, or both.
      (f) If Federal investigative or prosecutive jurisdiction is
    asserted for a violation of this section, such assertion shall
    suspend the exercise of jurisdiction by a State or local authority,
    under any applicable State or local law, until Federal action is
    terminated.
      (g) Violations of this section shall be investigated by the
    Federal Bureau of Investigation. Assistance may be requested from
    any Federal, State, or local agency, including the Army, Navy, and
    Air Force, any statute, rule, or regulation to the contrary
    notwithstanding.
      (h) In a prosecution for an offense under this section the
    Government need not prove that the defendant knew that the victim
    of the offense was an individual protected by this section.
      (i) There is extraterritorial jurisdiction over the conduct
    prohibited by this section.